JP2004289856A - Image detection apparatus, image detection method and image detection program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image detection apparatus which is equipped with an editing function and improves operability and affinity. <P>SOLUTION: When reproducing the image data recorded on a recording medium 18, under control of a CPU 40, an image reproducing system composed of an MPEG video decoder 23, a video signal post-processing circuit 24, a display image forming circuit 50, a composition part 26 and an NTSC encoder 27 are functioned to reproduce the image composed of a plurality of moving images at a plurality of time points accepted through a remote controller 150. An image of any arbitrary frame in the moving image that is selected through the remote controller 150 out of the plurality of moving images as a display target, and images of preceding and following frames are displayed to speedily find out and specify the target image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to, for example, an image detection device mounted on a digital recorder or the like for detecting a target image from image information recorded on a recording medium, an image detection method applied to the image detection device, and an image detection device. About the program.

  Some existing home digital recorders have an editing function. In a home digital recorder equipped with an editing function, when performing an editing operation such as deleting unnecessary scenes from a recorded television program, for example, or extracting only necessary scenes, the home digital recording This is done by switching the machine to edit mode.

  Specifically, the user (user) of the home digital recorder first shifts the home digital recorder to the edit mode, and then reproduces the recorded television program to be edited. While checking the playback image, the "play key", "fast forward key", "fast rewind key", "stop key", and "pause key" provided on the remote controller (remote control device) of the home digital video recorder. , Etc., to search for the edit point of the target scene.

  Then, by operating the editing operation keys such as the “chapter division key”, “start point specification key”, “end point specification key”, “delete key”, and “extract key” also provided on the remote control, And perform an editing operation. In order to specify an edit point as accurately as possible, a "slow reproduction key" or a "frame advance key" is used to search for an image of a frame that is most appropriate as an edit point.

  After changing to the edit mode, editing operation keys such as “Chapter division key”, “Start point specification key”, “End point specification key”, “Delete key”, and “Extraction key” which are used only when editing. By enabling the operation for, erroneous operation of the editing operation key used only at the time of editing can be prevented.

Further, as a technique relating to editing of image data, there are techniques described in Patent Documents 1 and 2 described later.
JP-A-06-110943 JP-A-05-030465

  By the way, when editing recorded data as described above in a conventional home digital recorder equipped with an editing function as described above, a remote control that receives an instruction input from a user is provided with many operation keys. In some cases, the position of the operation keys on the remote controller at hand must be checked frequently.

  For this reason, while checking the position of the operation keys on the remote control at hand, you may miss the scene where the target edit point exists, or operate the remote control at hand while checking the playback image. In some cases, you may make a mistake.

  Also, when searching for an edit point, it is not possible to specify the target edit point accurately and easily because the image cannot be specified in units that can be specified, for example, in frame units. It may take time and effort to specify the edit point to be edited.

  Further, as described above, editing work on recorded data becomes possible after switching to the edit mode. However, depending on the user, switching to the edit mode itself is not understood, and it takes time before editing the recorded data. It is thought that there are cases.

  Further, as the capacity of the recording medium increases, the recording time of a moving image that can be recorded on the recording medium also increases. For example, when determining an editing point from a program recorded for a long time, it takes an enormous amount of time to reproduce the program from the beginning and search for the editing point. Further, even when a program is reproduced from the middle, a desired edit point may be present in a skip portion, and an appropriate edit point may not be detected. For this reason, it is desired to take measures to enable a target scene to be quickly and accurately detected from image information for a long time such as several hours of reproduction time.

  In view of the above, the present invention eliminates the above-described problems, and can quickly and accurately detect target image information from recorded image information. It is another object of the present invention to provide an image detecting method and an image detecting program used in the image detecting apparatus.

In order to solve the above-mentioned problems, an image detecting device according to the invention described in claim 1 is
First extraction means for extracting a predetermined number of frame images from a plurality of frame images constituting a moving image;
First display control means for controlling display of a predetermined number of moving images with the predetermined number of frame images extracted by the first extraction means as an initial image;
First instruction means for selecting and instructing a desired moving image from a predetermined number of moving images whose display is controlled by the first display control means,
Second extracting means for extracting an arbitrary frame image from the moving image specified by the first specifying means;
Second display control means for controlling display of the frame image extracted by the second extraction means and a predetermined number of frame images temporally before and after the frame image;
And second instruction means for selecting and instructing a desired frame image from the frame images whose display is controlled by the second display control means.

According to the image detecting device of the first aspect,
The first extracting unit extracts, for example, a frame image designated by a user from a plurality of frame images constituting the moving image, and uses the extracted frame image as an initial image to generate a predetermined number of moving images. The display is controlled by the first display control means so as to be displayed simultaneously.

  Then, from among the plurality of moving images displayed by the first display control unit, a target moving image is instructed by the first instruction unit. Thereafter, an arbitrary frame image is extracted by the second extracting unit from the instructed moving image by the second extracting unit.

  The frame image extracted by the second extracting means and the frame images before and after the frame image are displayed by the second display control means, and a target frame image is displayed from the displayed images. The instruction can be made through the second instruction means.

  As a result, an editing point such as a start point and an end point of a target scene can be quickly, accurately and easily detected from a plurality of frame images constituting a moving image.

  According to the present invention, unlike the conventional recording / reproducing apparatus, it is possible to perform editing as needed in the reproduction mode basically without using the two modes of the reproduction mode and the edit mode. it can. Therefore, there is no inconvenience such as not knowing the operation for shifting to the edit mode or taking time to shift to the edit mode.

  In addition, since operations related to editing can be performed using a very limited number of operation keys of an operating device such as a remote controller, the operation for performing editing is extremely simple. Thus, inconveniences such as frequent occurrence of erroneous operations and missing of a target scene due to distracted operations are not caused.

  In addition, a chapter mark is added to an image of a target scene, and the image with the chapter mark added thereto and an image in the vicinity thereof can be simultaneously checked as a reduced image, and can be displayed in a scrolling manner. Therefore, without using many conventional functions such as fast-forward, fast-reverse, and frame-by-frame, edit the image with the target scene accurately specified based on the image with chapter marks added. Can be

  Further, it is possible to quickly and accurately find an image of a target scene from image information recorded for a long time.

  Hereinafter, an embodiment of an image detection device, an image detection method, and an image detection program according to the present invention will be described. In the embodiment described below, a case where the present invention is applied to a recording / reproducing apparatus using a hard disk as a recording medium will be described as an example.

[First Embodiment (Chapter mark is attached and reference is made)]
[Example of Usage of Recording / Reproducing Device]
FIG. 1 is a diagram for explaining an image detection device, an image detection method, and a recording / reproducing device 100 to which an image detection program according to the present invention is applied. The recording / reproducing device 100 includes various digital devices and analog devices as a device for supplying information including image information in addition to a monitor receiver to which a reproduced image signal to be formed in the recording / reproducing device 100 is supplied. The image processing system can be connected to form an image processing system.

  FIG. 1 is a diagram for explaining an image processing system configured using the recording / reproducing apparatus 100 according to this embodiment. As shown in FIG. 1, a BS / CS tuner 300 as a digital device, a terrestrial television tuner 400 as an analog device, and a video camera 500 as a digital device are connected to the recording / reproducing device 100. ing.

  The devices connectable to the recording / reproducing device 100 are not limited to those shown in FIG. For example, various playback devices such as a DVD (Digital Versatile Disk) player, a VTR (Video Tape Recorder), a recording and playback device using a hard disk as a recording medium, and a recording and playback device can be connected.

  In this embodiment, the recording / reproducing apparatus 100 is a digital signal or an analog signal including image information such as a broadcast signal from the BS / CS tuner 300, a terrestrial television tuner 400, and recording information from the video camera 500. , And can record this as a digital signal on a recording medium (hard disk) built therein.

  The recording / reproducing apparatus 100 reads out image information recorded on its own recording medium, reproduces an image signal for displaying an image on a display screen of the monitor receiver 200 as a display element, and reproduces the image signal. It can be supplied to the monitor receiver 200. As a result, an image corresponding to the image information recorded on the hard disk of the recording / reproducing apparatus 100 is displayed on the display screen of the monitor receiver 200 so that the user can view it.

  Here, the case where image information is mainly recorded and reproduced has been described. However, the broadcast signal for providing the television broadcast program and the recording information from the video camera 500 include not only the image information but also the audio information, and the recording / reproducing apparatus 100 is supplied with the image information in addition to the image information. Audio information is also recorded on a recording medium, and the recorded information can be reproduced. Although not shown, the reproduced audio information is supplied to, for example, a speaker provided in a monitor receiver.

  In addition, by operating the operation keys on the operation panel 45 provided on the front panel surface of the recording / reproducing apparatus 100, the operation of the remote control commander 150 for the recording / reproducing apparatus 100 can be performed. Various instructions can be given by operating a key group.

  The infrared remote control signal corresponding to the operation of the operation key group of the remote control 150 is output from the remote control signal output unit 151 of the remote control 150, and is output to a remote control signal receiving unit provided on the front panel side of the recording / reproducing apparatus 100. When the light is received by the unit 44, information corresponding to the operation of the operation key group of the remote controller 150 is notified to the recording / reproducing apparatus 100.

  Specifically, through the operation keys on the operation panel 45 provided on the front panel surface of the main body or the remote controller 150, recording start and stop, reproduction start and stop, fast forward start and stop, fast forward start and stop, and fast reverse start and stop In addition to general operation instructions such as pause and pause release, as will be described in detail later, a mark mark called a chapter mark may be provided near a target scene of image information being reproduced, An editing instruction or the like for deleting or moving an image section to which a chapter mark is added can be input to the recording / reproducing apparatus 100.

[Configuration of recording / reproducing device]
FIG. 2 is a block diagram for explaining the configuration of the recording / reproducing apparatus 100 according to the present embodiment. In FIG. 2, a CPU (Central Processing Unit) 40 controls all the circuit blocks described later. The CPU 40 accesses a ROM (Read Only Memory) 41, a RAM (Random Access Memory) 42, and an EEPROM (Electrically Erasable and Programmable ROM) 43 via a host bus as necessary, and the recording / reproducing apparatus (image detecting apparatus) 100. Performs overall control.

  Also, as shown in FIG. 2, a light receiving section 44 for infrared remote control signals is connected to the host bus. The light receiving unit 44 receives an infrared remote control signal from the remote controller 150, converts the infrared remote control signal into an electric signal, and supplies the electric signal to the CPU 40.

  Thereby, the CPU 40 can control each unit so as to perform a process according to an instruction from the user supplied through the remote controller 150, and can perform various settings on the EEPROM 43, for example. .

  The ROM 41 stores various programs to be executed by the recording / reproducing apparatus 100 of this embodiment and various data necessary for processing. The RAM 42 temporarily records an intermediate result of the processing. It is mainly used as a work area. The EEPROM 43 is a so-called non-volatile memory, and is used to store data that needs to be retained even when the power is turned off, for example, various setting data.

  The recording / reproducing apparatus 100 of this embodiment shown in FIG. 2 includes a digital input terminal 1, a digital input / output terminal 2, an analog audio input terminal 4, and analog image input terminals 8, 10 as input terminals. I have. The analog image input terminal 8 is for a composite image signal (Cps), and the analog image input terminal 10 is for a separate image signal (S).

  Further, the recording / reproducing device 100 includes a digital input / output terminal 2, an analog audio output terminal 22, and analog image output terminals 28 and 29 as output terminals. The analog image output terminal 28 is for a composite image signal (Cps), and the analog image output terminal 29 is for a separate image signal (S).

  Further, the recording / reproducing apparatus 100 of this embodiment includes a communication connection terminal 31 and various types of communication via a communication interface (hereinafter abbreviated as a communication I / F) 30 through a communication network such as the Internet. Data can be sent and received.

  The recording / reproducing apparatus 100 records the image signal and the audio signal received through the input terminal and the input / output terminal described above on the recording medium 18 as a hard disk, and outputs the image signal and the audio signal through the output terminal and the input / output terminal described above. Also, it is possible to read out and reproduce the image signal and the audio signal recorded on the recording medium 18 and output them through each output terminal.

  In addition, the data received through the communication connection terminal 31 described above is recorded on the recording medium 18 or output digitally. If the received data is image data or audio data, the data is converted into an analog signal. Then, it can be output through an analog output terminal.

  As shown in FIG. 1, in this embodiment, a BS / CS tuner 300, a terrestrial television tuner 400, and a video camera 500 are connected to the recording / reproducing apparatus 100. In this case, the BS / CS tuner 300 is connected through the digital input terminal 1, the terrestrial television tuner 400 is connected through the analog audio input terminal 4, the analog image input terminal 8, or the analog image input terminal 10, and a video camera. The following description proceeds assuming that 500 is connected through the digital input / output terminal 2.

[Use of digital input]
The operation of the recording / reproducing apparatus 100 according to this embodiment when information is supplied through the above-described input terminals will be described. First, an operation in a case where a BS digital broadcast signal or a CS digital broadcast signal is supplied from the BS / CS tuner 300 connected through the digital input terminal 1 and is recorded on the recording medium 18 or analog output is performed. explain.

  The digital BS / CS tuner 300 is connected to a parabona antenna for receiving a digital broadcast signal from a satellite. Then, the digital BS / CS tuner 300 receives and tunes a target digital broadcast signal based on a tuning control signal according to a tuning instruction from the user, and tunes the received and tuned digital broadcast signal. The data is supplied to the recording / reproducing apparatus 100 through the digital input terminal 1. The digital broadcast signal supplied through the digital input terminal 1 is supplied to a multiplexing / demultiplexing circuit 16.

  The digital broadcast signal includes various control data such as channel selection information called PSI (Program Specific Information) and EPG (Electronic Program Guide) data for forming an electronic program guide table for each channel as a program transmission path. Image data (video data), audio data (audio data), and other various data constituting a broadcast program are packetized, multiplexed and transmitted. The format of a so-called TS (Transport Stream) signal It was done.

  An identifier (ID) is added to each packet so that PSI data and EPG data can be extracted, and image packets and audio packets constituting the same program can be extracted by using the identifier. Has been.

  The multiplexing / demultiplexing circuit 16 extracts PSI and EPG data from the TS signal from the digital BS / CS tuner 300 and supplies the data to the CPU 40 to enable selection of a program and form an electronic program guide table. This is output so as to be displayed in response to an instruction from the user, thereby enabling program selection and recording reservation through the electronic program guide table.

  When recording of the selected program is instructed, the multiplexing / demultiplexing circuit 16 outputs an image packet and an audio packet of the target program selected by the user from the TS signal from the digital BS / CS tuner 300. Are extracted to form a new TS signal including these and necessary control data, and this is recorded on the recording medium 18 through the buffer control circuit 17.

  At the same time, the multiplexing / demultiplexing circuit section 16 forms an image ES (Elementary Stream) from the image packet of the target program extracted from the TS signal from the digital BS / CS tuner 300, and divides this into an MPEG (Moving Picture Experts Group). ) It supplies it to the video decoder 23 and forms an audio ES (Elementary Stream) from the audio packet, and supplies it to the MPEG audio decoder 19.

  The MPEG audio decoder 19 decodes the audio ES supplied thereto, obtains baseband audio data, and supplies this to the post audio signal processing circuit 20. The MPEG decoder 23 decodes the supplied image ES, obtains baseband image data, and supplies this to the post video signal processing circuit 24.

  The post video signal processing circuit 24 performs switching between image data from the MPEG video decoder 23 and image data from the pre-video signal processing circuit 13, which will be described later, and performs screen synthesis and filter processing. It is supplied to the synthesis circuit 26.

  As will be described later, the synthesizing circuit 26 includes image data from the post video signal processing circuit 24, image data of reduced still images called thumbnails from the still image generating circuit 25, and a screen formed by the CPU 40. It receives graphics and character data for display, performs processing such as synthesizing them, and partially overlapping the display, and supplies the processed image data to the NTSC encoder 27.

  The NTSC encoder 27 converts the input image data (component digital signal) into a YC signal, performs D / A conversion, and generates an analog composite image signal (Cps) and a separate image signal (S). They are output through analog image output terminals 28 and 29.

  On the other hand, the post audio signal processing circuit 20 performs switching between audio data from the MPEG audio decoder 19 and audio data from the pre-audio signal processing circuit 6, filtering, fading, and speech speed conversion. The subsequent audio data is supplied to the audio D / A converter 21. The audio D / A converter 21 converts the audio data supplied thereto into an analog audio signal, and outputs this through an analog audio output terminal 22.

  Note that a monitor receiver 200 is connected to a stage subsequent to the analog audio output terminal 22 and the analog image output terminals 28 and 29, and audio corresponding to the analog audio signal output through the analog audio output terminal 22 is provided on the monitor receiver 200. Then, an image corresponding to the analog image signal output through the analog image output terminals 28 and 29 is displayed on the display screen of the monitor receiver.

  As described above, the recording / reproducing apparatus 100 according to the present embodiment extracts the image data and the audio data of the target program from the digital broadcast signal supplied from the BS / CS tuner 300, and records them on the recording medium 18. At the same time, an analog image signal and an analog audio signal are formed at the same time, and can be output. That is, it is possible to view the program while recording the target program provided as a digital broadcast signal on the recording medium 18.

[Use of digital input / output]
In addition, as described above, the TS signal newly formed in the multiplexing / demultiplexing circuit 16 is transferred to a digital interface circuit (hereinafter abbreviated as a digital I / F circuit) 3 and the digital input / output terminal 2 to, for example, another recording device It is also possible to output to an external device such as a device or a personal computer. In this case, the digital I / F circuit 3 converts the supplied digital signal into a digital signal in a format suitable for an external device and outputs the digital signal.

  Conversely, for example, a digital signal supplied from a digital video camera 500 or the like via a digital interface such as IEEE 1394 is received via the digital input / output terminal 2 and recorded on the recording medium 18 or an analog image signal. , An analog audio signal can be formed and output.

  That is, the digital signal supplied through the digital input / output terminal 2 is supplied to the digital I / F circuit 3. The digital I / F circuit 3 performs processing such as format conversion on the digital signal supplied thereto so as to conform to the method used by the recording / reproducing apparatus 100 of this embodiment, and generates a TS signal. Are supplied to the multiplexing / demultiplexing circuit 16.

  The multiplexing / demultiplexing circuit 16 further analyzes and generates control signals and the like, forms a TS signal in a format to be recorded on the recording medium 18, and records this on the recording medium 18 through the buffer control circuit 17 as described above. Have to be able to.

  Also, the multiplexing / demultiplexing circuit 16 forms an image ES and an audio ES from the TS signal supplied from the digital I / F circuit 3 and supplies them to the MPEG video decoder 23 and the MPEG audio decoder 19, as described above. In addition, an analog image signal and an analog audio signal are formed, and these can be output.

[Use of analog input]
Next, a television broadcast signal is supplied from a terrestrial television tuner 400 connected through the analog audio input terminal 4 and, for example, the analog image input terminal 8, and the television broadcast signal is recorded on the recording medium 18 or analog output. The operation in the case of performing will be described.

  The terrestrial television tuner 400 receives, tunes and demodulates a terrestrial analog broadcast signal, obtains an analog composite image signal (Cps) and an analog audio signal, and supplies them to the recording / reproducing apparatus 100. An analog audio signal from the terrestrial television tuner 400 is supplied to the A / D converter 5 through the analog audio input terminal 4, and an analog composite image signal (Cps) from the terrestrial television tuner 400 is supplied through the analog image input terminal 8. It is supplied to the YC separation circuit 9. In the case of an analog separate image signal (S), it is supplied to the selector 11 through the analog image input terminal 10.

  The YC separation circuit 9 separates the supplied analog composite image signal (Cps) into a luminance signal Y and a color difference signal C (so-called YC separation), and supplies these to the selector 11. The selector 11 is also supplied with an analog separate image signal (S) supplied through the analog image input terminal 10.

  The selector 11 sends an image signal from the YC separation circuit 9 or an image signal supplied as a separate image signal via the analog image input terminal 10 to an NTSC (National Television System Committee) decoder 12 in accordance with an instruction from the CPU 40. Switch whether to supply.

  The NTSC decoder 12 performs processing such as A / D conversion and chroma decoding on the analog image signal input thereto, converts it into digital component video data (video data), and converts this into a pre-video signal processing circuit 13. To supply. In addition, the NTSC decoder 12 supplies a clock generated based on the horizontal synchronization signal of the input image signal and a horizontal synchronization signal, a vertical synchronization signal, and a field determination signal obtained by synchronizing and separating to the synchronization control circuit 15.

  The synchronization control circuit 15 generates a clock signal and a synchronization signal for providing necessary timing in each circuit block based on each signal supplied thereto, and supplies these to each circuit block.

  Further, the pre-video signal processing circuit 13 performs various video signal processing such as a pre-filter on the input image data, and supplies this to the MPEG video encoder 14 and the post video signal processing circuit 24.

  The MPEG video encoder 14 performs an encoding process such as a block DCT (Discrete Cosine Transform) on the image data from the pre-video signal processing circuit 13 to generate an image ES, and supplies the image ES to the multiplexing / demultiplexing circuit 16. .

  On the other hand, the audio signal supplied to the A / D converter 5 through the audio input terminal 4 is converted into digital audio data in the A / D converter 5 and then supplied to the pre-audio signal processing circuit 6. The pre-audio signal processing circuit 6 performs a filtering process on the supplied audio data, and supplies this to an MPEG audio encoder 7.

  The MPEG audio encoder 7 compresses the supplied audio data in accordance with the MPEG format, generates an audio ES, and supplies it to the multiplexing / demultiplexing circuit 16 as in the case of the image data.

  The multiplexing / demultiplexing circuit 16 multiplexes the image ES from the MPEG video encoder 14, the audio ES from the MPEG audio encoder 7, and various control signals during recording. That is, the multiplexing / demultiplexing circuit 16 at the time of recording combines the input MPEG image ES and MPEG audio ES with various control signals, performs multiplexing processing, and generates, for example, an MPEG system TS signal. The TS signal generated here is recorded on the recording medium 18 through the buffer control circuit 17.

  As shown in FIG. 2, the audio data from the pre-audio signal processing circuit 6 is supplied to the MPEG audio encoder 7 and also to the post-audio signal processing circuit 20. Is supplied to the MPEG video encoder 14 and also to the post video signal processing circuit 24.

  Then, an analog audio signal is formed by the functions of the post audio signal processing circuit 20 and the D / A converter 21 and output through the audio output terminal 22, and the post video signal processing circuit 24, the synthesizing circuit 26, the NTSC encoder With the function 27, an analog image signal is formed and can be output through analog image output terminals 28 and 29.

  That is, in parallel with the process of converting an analog signal supplied through the analog audio input terminal 4 and the analog image input terminals 8 and 10 into a digital signal and recording the digital signal on the recording medium 18, the image data to be recorded and the audio The data can be reproduced and output.

  In addition, it is also possible to multiplex the analog input image signal and audio signal as image data and audio data, and to output them to an external digital device through the digital I / F circuit 3 and the digital input / output terminal 2.

[Reproduction from recording medium]
Next, the operation of the recording / reproducing apparatus 100 of this embodiment when reproducing the image data and the audio data recorded on the recording medium 18 as described above will be described. Under the control of the CPU 40, a target TS signal to be reproduced is read from the recording medium 18 and supplied to the multiplexing / demultiplexing circuit 16 through the buffer control circuit 17.

  At the time of reproduction, the multiplexing / demultiplexing circuit 16 separates the image ES and the audio ES from the TS signal read from the recording medium 18, supplies the separated audio ES to the MPEG audio decoder 19, and converts the image ES. It is supplied to the MPEG video decoder 23.

  The processing of each circuit unit after the MPEG audio decoder 19 and the processing of each circuit unit after the MPEG video decoder 23 are the same as those described in the above description on the use of digital input. That is, an analog audio signal is formed and output from the audio ES supplied to the MPEG audio decoder 19, and an analog image signal is formed and output from the image ES supplied to the MPEG video decoder 23.

  As a result, an image and a sound corresponding to the image data and the sound data read from the recording medium 18 are output through the monitor receiver 200 connected to the subsequent stage of the analog sound output terminal 22 and the analog image output terminals 28 and 29. You will be able to watch this.

[Use of communication connection terminal and communication interface]
Further, as described above, the recording / reproducing apparatus 100 of this embodiment includes the communication I / F 30 and the communication connection terminal 31, and is connected to a network such as the Internet via a telephone line, for example. Through a network, various types of data can be obtained, and various types of data can be transmitted to the network.

  Here, as various types of data that can be transmitted and received, it is possible to transmit and receive various programs and text data in addition to image data and audio data. In the case of image data or audio data, the data can be recorded on the recording medium 18 through the multiplexing / demultiplexing circuit 16.

  Also, an audio signal reproduction system including a multiplexing / demultiplexing circuit 16, an MPEG audio decoder 19, a post audio signal processing circuit 20, a D / A converter 21, and an audio output terminal 22, an MPEG video decoder 23, a post video signal processing By using an image signal reproduction system including a circuit 24, a still image generation circuit 25, a synthesis circuit 26, an NTSC encoder 27, and image output terminals 28 and 29, image data and audio data obtained through a communication network are reproduced. Can be used.

  Further, a program or control data used in the recording / reproducing apparatus 100 of this embodiment is provided through a network, is recorded and held in the EEPROM 43, and is used as needed. You can also. For example, the function of the recording / reproducing apparatus of this embodiment is improved through a communication network, or EPG data for BS digital broadcasting or CS digital broadcasting is obtained in advance, and an electronic program guide table is created in advance. Be able to do things such as leaving.

  In this embodiment, the image data and the audio data are compressed according to the MPEG method. However, other compression methods can be used. Alternatively, the processing can be performed without compression.

[About editing function]
The recording / reproducing apparatus 100 according to this embodiment has an editing function, reproduces a broadcast program or the like recorded on the recording medium 18, and confirms the reproduced image while checking an image constituting an intended scene. In addition, a chapter mark as a mark can be added by a simple operation.

  Then, the reduced still image is displayed in a scrollable manner based on the image to which the chapter mark is attached, and the start and end of the target scene are accurately specified in frame units, that is, in image units, The beginning and the end of the signal section to be edited are strictly specified so that the intended editing can be performed on the specified image section.

  In this case, a portion that forms an image signal for displaying a reduced still image is the still image generation circuit 25 shown in FIG. The still image generation circuit 25 includes, for example, a buffer memory of about 4 Mbytes, obtains target image data from image data recorded on the recording medium 18 via the MPEG video decoder 23 under the control of the CPU 40, An image signal for displaying the reduced image is formed.

  In the recording / reproducing apparatus 100 according to the present embodiment, the editing function is not such that it does not operate unless the recording / reproducing apparatus is switched to the editing mode, as in the editing function of the conventional recording / reproducing apparatus. As described in detail below, the recording / reproducing apparatus 100 of this embodiment enables various editing functions to be used in the reproducing mode, and allows the transition from the reproducing operation to the editing operation to be performed without interruption. , So-called seamless operation.

  Hereinafter, the editing function of the recording / reproducing apparatus 100 of this embodiment will be described. The recording medium 18 of the recording / reproducing apparatus 100 is a hard disk as described above, and can record a large amount of data. For example, if a group of information such as one television broadcast program is called a title, the recording medium 18 can store and hold a group of information including image information for a plurality of titles. I have.

  In other words, in this specification, a title is a set of image information, audio information, and the like, which are to be treated as a series of (one) information, such as one broadcast program, one movie, and the like. As described above, information for a plurality of titles can be recorded.

  When a title to be reproduced is selected from the titles recorded and held in the recording medium 18 and the reproduction is instructed, a group of information (TS signal) including image information of the title is read from the recording medium 18. Then, as described above, the data is reproduced by the functions of the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the post video signal processing circuit 24, the synthesizing circuit 26, and the NTSC encoder 27. The image information to be reproduced here is supplied to the monitor device 200, and the reproduced image is displayed on the display screen 201 of the monitor device 200.

  Then, an image of the target scene is displayed on the display screen 201, and when the user confirms this, the user presses the chapter mark key 154 of the remote controller 150 at hand to put a so-called chapter mark on the image of the target scene. To do. FIG. 3 is a diagram for describing an example of a display image 201G on the display screen 201 immediately after an operation is performed so as to add a chapter mark.

  When the chapter mark key 154 is pressed down, the CPU 40 of the recording / reproducing apparatus 100 knows which image is currently being reproduced by the time code or frame number of the image. At the time when the key 154 is pressed, time code information and a frame number are acquired as information for specifying an image to be displayed on the display screen 201 of the monitor receiver 200. Along with the title identification information in a file provided on the recording medium 18 as chapter mark information.

  Further, when the CPU 40 detects that the chapter mark key 154 has been pressed, as shown in FIG. 3, a timeline corresponding to the total data amount of the title being reproduced at that time and indicating the total reproduction time is displayed. 201T and triangular marks M1, M2, M3,... Indicating the position of the chapter-marked image during the total reproduction time of the title.

  That is, the chapter mark is attached to the image data of one frame unit, and the triangle mark is a display mark for indicating the position of the image to which the chapter mark is attached.

  The timeline 201T and the triangular marks M1, M2, M3,... Are displayed for a certain period of time after the chapter mark key 154 is pressed, and then deleted, and the display returns to the original display image 201G only. Is done. Then, as shown in FIG. 3, the chapter mark key 154 can be pressed as many times as necessary in one title, and a plurality of chapter marks are provided in one title. You can do so.

  In this way, during the reproduction of the target title, for example, only one or more unnecessary scenes that are discretely present in one title or only one or more unnecessary scenes are specified. Or be able to.

  Then, using the image in which the chapter mark is added as a reference image (editing point), reproduction from the position (image) where the chapter mark is added, sandwiching between the image with the chapter mark or the chapter mark Editing such as deletion, movement, and extraction of an image in the section that has been performed, and division of image information based on a position at which a chapter mark is added can be performed.

  However, the chapter mark to be added by pressing the chapter mark key 154 during reproduction of the target title is roughly attached to the image of the target scene. It is not always attached to the end image.

  Therefore, after attaching even one chapter mark, by operating a predetermined operation key of the remote controller 150 or displaying a predetermined menu, an item called “mark edit” is displayed from the menu. Is selected, the recording / reproducing apparatus 100 is caused to transition to a mode for receiving an operation on a chapter mark. In this case, the display image 201G displayed on the display screen 201 is temporarily stopped. That is, a still image is obtained.

  Thereafter, as shown in FIG. 3, the CPU 40 of the recording / reproducing apparatus 100 forms image information for displaying the timeline 201T and the triangular mark indicating the position of the image with the chapter mark, and forms this. The image is displayed on the monitor receiver 200 so as to accept the selection of the image with the chapter mark.

  Immediately after transiting to the mode for accepting an operation for a chapter mark, for example, an image to which a chapter mark has been added most recently, or an image to which a chapter mark has been added first, such as a plurality of images to which a chapter mark has already been added. A triangular mark corresponding to a predetermined image position is selected.

  Then, by operating the left arrow key 152L and the right arrow key 152R of the remote controller 150, a target triangle mark on the timeline 201T can be selected.

  By operating the left arrow key 152L and the right arrow key 152R of the remote control 150 to select a target triangular mark and performing a predetermined operation such as pressing the up arrow key 152U of the remote control 150, the recording / reproducing apparatus 100 The CPU 40 specifies the order of the chapter mark information corresponding to the triangular mark from the position of the triangular mark, and refers to the chapter mark information recorded and held in the recording medium 18 to select the chapter mark information. The image at the position indicated by the triangle mark is specified.

  Then, the CPU 40 acquires from the recording medium 18 the image information forming the specified image (the image at the position indicated by the selected triangular mark) and the image information forming the neighboring image. To the still image generation circuit 25 via the MPEG video decoder 23, and controls the still image generation circuit 25 to display reduced still images S1, S2, S3, S4, and S5 called thumbnails and the like. Form an image signal.

  The image signals for displaying a plurality of, in this embodiment, at least five reduced still images generated by the still image generation circuit 25 are supplied to the synthesizing unit 26, where the image signals from the post video signal processing circuit 24 The image signal is synthesized with the image signal, output through the NTSC encoder 27, supplied to the monitor receiver 200 as shown in FIG. 1, and displayed on the display G plane 201.

  In the case of the example shown in FIG. 4, the triangle mark M1 is selected, and the image at the position indicated by the triangle mark is set as a reference (S3), and the images (S1, S2) of two frames before the image S3 are set. ) And two frames of images (S4, S5) after the image S3 are displayed as reduced still images for five frames.

  In the case of the example shown in FIG. 4, the outer frame of the reduced still image S3 to which a chapter mark is attached at the present time is shown thick, and a so-called cursor is positioned, and the reduced still image S3 Is a reduced still image to be operated.

  Then, while the reduced still images S1, S2, S3, S4, and S5 are displayed, the cursor is moved by operating the left arrow key 152L and the right arrow key 152R, so that the reduced still image of the operation target is displayed. Images can be changed sequentially.

  FIG. 5 is a diagram for explaining an example in which the reduced still image to be operated is changed when the reduced still images S1, S2, S3, S4, and S5 are displayed. When the left arrow key 152L is pressed, the cursor can be sequentially moved to the left.

  Therefore, when the left arrow key 152L is pressed twice while the cursor is positioned on the reduced still image S3, the cursor is moved to the reduced still image S1 at the leftmost end of the display screen 201 as shown in FIG. 5A. Can be positioned. Then, a reduced still image with a thick outer frame (a reduced still image in which the cursor is positioned) can be set as an operation target. In the state shown in FIG. 5A, the image with the chapter mark is the image displayed as the reduced still image S3 as indicated by the arrow in FIG. 5A.

  Further, when the left arrow key 152L is pressed, as shown in FIG. 5B, the reduced still image is scrolled rightward on the display screen 201, and the image that was not displayed when in the state of FIG. 5A. The image (S1-1) one frame before the reduced still image S1 is displayed as the reduced still image S1. At this point, the image with the chapter mark is the image displayed as the reduced still image S4, as indicated by the arrow in FIG. 5B.

  As described above, by pressing the left arrow key 152L, the reduced still image can be scrolled one frame at a time in the direction going back to the past, and the target image can be selected. I have.

  Similarly, by pressing the right arrow 152R, the cursor can be moved rightward on the display screen 201, and after the cursor is moved to the reduced still image S5 at the rightmost end of the display screen 201, Further, by pressing the right arrow key, the reduced still image is scrolled frame by frame in the direction to advance the time, so that the target image can be selected.

  By pressing the enter key 153 of the remote controller 150, a menu MN1 for selecting an operation on the reduced display image to be operated is displayed as shown in FIG. 5C. In this case, it is possible to select whether to return to the selection of the reduced still image or to reset the chapter mark.

  The resetting of the chapter mark is a process of adding a new chapter mark to the original image of the selected reduced still image and deleting the chapter mark added to the image used as the current reference image.

  Therefore, if resetting of the chapter mark is performed in the state shown in FIGS. 5B and 5C, a chapter mark is added to the original image of the reduced still image S1 in FIGS. The chapter mark added to the original image in S4 is deleted.

  Specifically, in the case of the example shown in FIGS. 5B and 5C, among the chapter mark information recorded and held on the recording medium 18, in FIG. 5B and 5C, information for specifying the original image of the reduced still image S4 is not included. Thus, the information can be changed to information for specifying the original image of the reduced still image S1.

  Then, the triangle mark indicating the position of the image from which the chapter mark has been deleted can be deleted, and the triangle mark indicating the position of the image with the newly added chapter mark can be newly displayed.

  Thus, in the recording / reproducing apparatus 100 of this embodiment, for example, a chapter mark is roughly added to an unnecessary scene portion while reproducing and viewing a television broadcast program or the like recorded on the recording medium 18. In this way, the roughly-applied chapter mark can be checked at an appropriate time so that the target image can be correctly re-applied with the chapter mark.

  Then, after the chapter mark is accurately added to the first image and the final image of the target scene, when an operation for returning the processing is performed, the reduced still images S1, S2, S3, S4, S5 is not displayed, and as shown in FIG. 3, the display is returned to the display including the display image 201G, which is a still image, the timeline 201, and the triangular marks M1, M2, M3,. Playback and various kinds of editing can be performed based on the attached image.

  FIG. 6 is a diagram for explaining a case in which reproduction and various types of editing are performed based on an image with a chapter mark added. After returning to the display including the display image 201G as a still image, the timeline 201T, and the triangular marks M1, M2, M3,..., Selecting the triangular mark and performing a predetermined operation, the selected triangular mark is displayed. A selection menu MN2 of processing that can be performed based on the marked image is displayed.

  By selecting a target process from this menu MN2, the selected triangular mark is deleted, the image is reproduced from the position of the selected triangular mark, two triangular marks are designated, and the triangular mark is sandwiched between the two triangular marks. It is possible to perform processing such as deletion of the scene portion (AB deletion), naming of the selected triangle mark, and the like.

  In addition, the user designates two triangle marks and moves a scene portion sandwiched between the two triangle marks, or divides image information of a broadcast program or the like based on the image of the selected triangle mark. It is also possible to perform various kinds of editing processing such as the following.

  As described above, in the recording / reproducing apparatus 100 of the present embodiment, unlike the conventional recording / reproducing apparatus, the recording / reproducing apparatus 100 is switched to the edit mode, and thereafter, the editing is not performed. , A chapter mark is set, and the chapter mark can be finally edited based on the chapter mark.

  That is, the playback mode and the editing mode are not clearly different in mode, and various editing functions can be used as functions executable in the playback mode. Therefore, the normal operation for reproducing and viewing and the operation for editing can be performed seamlessly, and a user-friendly recording / reproducing apparatus is realized.

  Next, the operation at the time of reproduction of the recording / reproducing apparatus 100 of this embodiment will be further described with reference to the diagrams showing examples of display items in FIG. 7 and the flowcharts in FIGS. The operation at the time of reproduction of the recording / reproducing apparatus 100 according to this embodiment is the one to which the image detection method according to the present invention is applied, and is performed, for example, by executing an image detection programgram executed by the CPU 40. Is done.

  FIG. 7 is a diagram for explaining an example of display items to be displayed on the display screen 201 of the monitor receiver 200 by the recording / reproducing apparatus 100 according to this embodiment. As described above, the recording / reproducing apparatus 100 of the present embodiment reads out and reproduces image information recorded on the recording medium 18, thereby forming and outputting an analog image signal to be supplied to the monitor receiver 200. The display image 201G can be displayed on the display screen 201 of the monitor receiver 200.

  At the time of reproduction (at the time of reproduction mode), at a predetermined timing, as shown in FIG. 7, a state display G1, a remote control operable key display G2, a timeline 201T, triangular marks M1, M2, M3,. The display ST, the end point display ED, the reduced still image (thumbnail) S, and image signals for displaying the menus MN1, MN2, and MNS are formed, and these can be displayed on the display screen of the monitor receiver 200. .

  Here, the state display G1 is for notifying the operation state of the recording / reproducing apparatus 100 such as the recording mode and the reproduction mode, and the remote control operable key display G2 is a remote control operation key that can be operated at that time. It is for notifying.

  Also, as described above, the timeline 201T indicates the total playback time (total data amount of the title) of the currently played title, and the triangular mark M1 displayed near the timeline 201T. , M2, M3,... Indicate the positions of the images in which chapter marks are to be added.

  Further, the start point ST indicates the start point of the section for which the range has been designated, and the end point ED indicates the end point of the section for which the range has been designated. In each case, the start point ST is designated in correspondence with the triangle mark. The section sandwiched between the end point ED and the end point ED can be set as an edit target such as deletion or movement.

  Further, in this embodiment, the reduced still image S is composed of five reduced still images S1, S2, S3, S4, and S5 as shown in FIGS. It is composed of an image selected by the user from the images with chapter marks and a reduced still image of an image in the vicinity thereof.

  The menu MN1 is for selecting a process for the selected reduced still image, and the menu MN2 is for selecting a process for a triangle mark displayed in correspondence with the chapter mark. . The menu MNS is for selecting an executable process in the reproduction mode.

  The recording / reproducing apparatus 100 according to the present embodiment performs the reproduction process and the display operation while appropriately displaying the display items shown in FIG. 7 in the reproduction operation described with reference to FIGS. Various processes that can be executed in the reproduction mode are performed.

  As shown in FIG. 8, when the power is turned on to the recording / reproducing apparatus 100 of this embodiment and an instruction to display a title list of broadcast programs and the like recorded on the recording medium 18 is input, the CPU 40 Refers to, for example, a directory of the recording medium 18 through the buffer control circuit 17 and forms an image signal for displaying a list of titles recorded on the recording medium 18, and forms the image signal through the multiplexing / demultiplexing circuit 16. 26, and a title list is combined with the display image 201G of the monitor receiver 200 to be displayed (step S101).

  Then, the CPU 40 of the recording / reproducing apparatus 100 receives the selection input of the title from the user through the remote controller 150 or the operation panel provided on the front panel surface of the recording / reproducing apparatus 100 (step S102), and also receives the remote controller 150 and the operation panel. The operation instruction input from the user through is received (step S103).

  Then, the CPU 40 determines whether or not an end instruction has been input from the user as an operation instruction input (step S104). When it is determined in the determination processing of step S104 that the end instruction has been input, the CPU 40 ends the processing shown in FIGS. 8 to 10 and performs a so-called initial operation for receiving a recording mode selection input or a title list display instruction input. Wait for input.

  When it is determined in the determination processing of step S104 that the end instruction has not been input, it is determined whether or not a target title selection input and a reproduction instruction input of the selected title have been input (step S105). When it is determined in the determination processing of step S105 that a title has not been selected or that a reproduction instruction has not been input, the CPU 40 repeats the processing from step S102 and receives a title selection input and an operation instruction input. To do.

  If it is determined in step S105 that an instruction to reproduce the selected title has been input, the CPU 40 determines whether the buffer control circuit 17, the multiplexing / demultiplexing circuit 16, the MPEG audio decoder 19, the post audio signal processing circuit 20, The D / A converter 21, the MPEG video decoder 23, the post video signal processing circuit 24, the synthesizing circuit 26, and the NTSC encoder 27 are controlled to start reproduction of the title selected in step S102 (step S106).

  In step S106, the status display G1 and the remote control operable key display G2 described with reference to FIG. 150 and operation keys on the operation panel are notified.

  Then, the CPU 40 receives an instruction input from the user through the remote controller 150 or the operation panel (step S107). The instruction inputs that can be accepted in step S107 include an instruction input for giving a chapter mark performed by pressing down the chapter mark key 154, a submenu display instruction input, and other operations such as pause, fast forward, fast rewind, and playback stop. There is an instruction input.

  Then, it is determined whether or not the instruction input received in step S107 is an instruction input for adding a chapter mark (step S108). If it is determined in the determination process of step S108 that an instruction input for giving a chapter mark has been received, the CPU 40 displays the image to be displayed on the display screen 201 of the monitor receiver 200 when the instruction input has been received. The specified time code or frame number is obtained (step S109).

  After obtaining the time code and the like, the CPU 40 compares the title information indicating the title currently being reproduced and the time code and the like of the image information which is the image information constituting the title and in which a chapter mark is added. The information is recorded on the recording medium 18 in association with each other (step S110). Then, the processing from step S107 is repeated so that chapter marks can be added to a plurality of images (a plurality of locations) in the same title.

  If it is determined in step S108 that the input is not an instruction to add a chapter mark, the CPU 40 determines whether the instruction is to instruct the display of the submenu MNS (step S111). If it is determined in the determination processing of step S111 that the instruction does not instruct the display of the submenu, the CPU 40 performs other processing instructed by the user, for example, processing such as pause, fast forward, fast rewind, and reproduction stop. The process is performed (step S112).

  If it is determined in step S111 that the instruction is a display instruction for the sub-menu MNS, the process proceeds to the process illustrated in FIG. 9 and the sub-menu MNS is displayed (step S113). Here, the submenu MNS includes a “mark edit” for editing a chapter mark added to an image, and a “title protection” for preventing an already recorded title from being accidentally deleted. ", Or" delete title "for deleting a previously recorded title.

  Then, the CPU 40 receives a selection input from the user through the remote control 150 or the operation panel provided on the front panel of the recording / reproducing apparatus 100 (step S114). Then, the CPU 40 determines whether or not the selection input received in step S114 is an instruction to execute “mark editing” (step S115).

  If it is determined in step S115 that the received selection input is not "mark edit", a selected process such as "title protection" or "title deletion" is performed (step S116).

  When it is determined in the determination processing of step S115 that "mark edit" has been selected, the CPU 40 controls the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the post video signal processing circuit 24, the synthesizing circuit 26, and the NTSC encoder 27. Then, the display image 201G is temporarily stopped (step S117).

  Next, the CPU 40 forms an image signal for displaying the time line 201T and the triangular marks M1, M2, M3, M4,..., And supplies the image signal to the multiplexing / demultiplexing circuit 16 and the synthesizing circuit 26. , 201T and the triangular marks M1, M2, M3,... Are displayed on the display screen 201 of the monitor receiver 200 so that the nearest triangular mark is selected (step S118).

  CPU 40 accepts a key input from the user through remote control 150 or the operation panel (step S119). In the recording and reproducing apparatus 100 of this embodiment, the input keys that can be operated in step S119 are the up arrow key 152U, the enter key 153, and the left and right arrow keys 152L and 152R.

  Then, CPU 40 determines what input key was operated in step S119 (step S120). When it is determined in step S120 that the operated input key is the up arrow key 152U, the CPU 40 determines that reduced still image display (thumbnail display) has been instructed, and corresponds to the currently selected triangle mark. The chapter mark information is extracted as information for specifying the image, and based on the chapter mark information, the image data of the image corresponding to the currently selected triangle mark and the image data of the neighboring image are read from the recording medium 18 and reduced. A still image (thumbnail) S is formed, supplied to the monitor receiver, and displayed on its display screen (step S121).

  Then, the CPU 40 receives a key input for the reduced still image displayed as the thumbnail (step S122). In this step S122, the input keys that can be operated are the down arrow key 152D, the enter key 153, and the left and right arrow keys 152L, 152R.

  The CPU 40 determines what the input key received in step S122 is (step S123). When determining that the down arrow key is operated, the CPU 40 determines that the instruction is to hide the displayed thumbnail S and displays the thumbnail S. The thumbnail is not displayed (step S124), and the processing from step S119 is repeated.

  If it is determined in step S123 that the received input key is the enter key, an image signal for displaying the menu MN1 is formed and supplied to the monitor receiver for display. (Step S125).

  In addition, in the determination processing of step S123, when it is determined that the received input keys are the left and right keys 152L and 152R, the processing of selecting the displayed reduced still image as described above with reference to FIGS. (Step S126), and thereafter, the processing from Step S122 is repeated.

  If it is determined in step S120 that the key input received in step S119 is the enter key 153, the CPU 40 forms an image signal for displaying the menu MN2 and transmits the image signal to the monitor image receiving unit. The data is supplied to the device and displayed (step S127). After the processing in step S125 and after the processing in step S127, the processing shifts to the processing shown in FIG. 10 described below.

  In addition, in the determination process of step S120, when the key input received in step S119 is determined to be the left and right keys 152L and 152R, the CPU 40 determines that the timeline 201T and the triangular marks M1, M2, M3, On the display of..., A triangle mark corresponding to the image at the target position is selected (step S128), and thereafter, the processing from step S119 is repeated.

  Then, as shown in FIG. 9 and as described above, after step S125 and step S127, the CPU 40 proceeds to the process shown in FIG. 10, and the menu MN1 displayed in step S125 shown in FIG. The selection of the function from the menu MN2 displayed in S127 is accepted (Step S129).

  In step S129, when the displayed menu is the menu MN1, since it is a menu for a reduced still image, "return" and "mark resetting" can be selected as shown in FIG. 5C. . If the displayed menu is the menu MN2, it is a menu for the timeline and the triangular mark. Therefore, as shown in FIG. 6, "return", "delete mark", "delete AB", "Play from here" can be selected.

  Then, in step S129, when CPU 40 determines that "return" is selected (step S130), if menu MN1 is displayed, the processing from step S122 shown in FIG. The key input to the image is received again, and when the menu MN2 is displayed, the processing from step S119 shown in FIG. 9 is repeated to again receive the key input to the triangle mark corresponding to the chapter mark. To do.

  When the CPU 40 determines in step S129 that the mark reset has been selected from the menu MN1, or when the CPU 40 determines that the mark deletion has been selected from the menu MN2 (step S131), the CPU 40 first performs The chapter mark information added to the image corresponding to the selected triangle mark is deleted from the recording medium 18 (step S132).

  Then, the CPU 40 determines whether or not a mark reset is instructed (step S133), and when the mark reset is instructed, as shown in FIG. 7, a menu for the selected reduced still image is displayed. Since this is an instruction input to the MN1, for example, a time code is acquired as information for specifying an image corresponding to the selected reduced still image, and this is newly registered (recorded) on the recording medium 18 as chapter mark information (step). S134).

  After the process of step S134, or when it is determined in step S133 that the mark is not reset (the mark is deleted in the menu MN2 for the triangle mark), the reproduction of the display image 201G stopped in step S117 is restarted ( Step S135), the processing from step S107 shown in FIG. 8 is repeated.

  When the CPU 40 determines that “AB deletion” has been selected from the menu MN2 in step S129 (step S136), the CPU 40 is displayed as shown at the start point ST in FIG. The selection input of the start point is received using the triangular mark as a processing unit, and the position is displayed (step S137). Similarly, in FIG. 7, the CPU 40 accepts the selection of the end point using the displayed triangular mark as a processing unit and displays the position as shown by the end point ED in FIG. 7 (step S138).

  Then, the CPU 40 deletes the image from the start point selected in step S137 to the end point selected in step S138 (step S139), and then resumes the reproduction of the display image 201G stopped in step S117. (Step S135), and the process from Step S107 shown in FIG. 8 is repeated.

  If the CPU 40 determines in step S129 that “play from here” has been selected from the menu MN2 (step S140), the CPU 40 determines the title to be processed from the image corresponding to the currently selected triangle mark. Is restarted (step S135), and the processing from step S107 shown in FIG. 8 is repeated.

  As described above, in the recording / reproducing apparatus 100 of this embodiment, unlike the conventional recording / reproducing apparatus, the two modes of the reproducing mode and the editing mode are not properly used. , So that editing can be performed as needed. Therefore, there is no inconvenience such as not knowing the operation for shifting to the edit mode or taking time to shift to the edit mode.

  In addition, operations related to editing are performed using only a limited number of operation keys of an operation device such as a remote controller, for example, an up arrow key 152U, a down arrow key 152D, a left arrow key 152L, a right arrow key 152R, an enter key 153, and a chapter mark key 154. Since editing can be performed by using the editing, the operation for editing is extremely simple. Therefore, inconveniences such as frequent occurrence of erroneous operations and missing of a target scene due to distracted operations are not caused.

  In addition, a chapter mark is added to an image of a target scene, and the image with the chapter mark added thereto and an image in the vicinity thereof can be simultaneously checked as a reduced image, and can be displayed in a scrolling manner. Therefore, without using many conventional functions such as fast-forward, fast-reverse, and frame-by-frame, edit the image with the target scene accurately specified based on the image with chapter marks added. Can be

  That is, in the recording / reproducing apparatus 100 of this embodiment, since the editing operation can be performed quickly and easily, it is possible to concentrate on the screen (reproduced image) without being distracted by the remote control operation. . Also, there is no need to worry about modes such as playback mode and edit mode, and detailed editing in frame units is possible. However, it can be easily performed using a frame as a minimum unit.

  When a chapter mark is reset, an image to which a new chapter mark is added is displayed on the display screen 201 of the monitor receiver 200, and reproduction is restarted from the image. You can also. Further, when the AB deletion is performed, the reproduction can be restarted from the next image of the deleted image section, or the reproduction can be restarted from the image at the position of the next triangle mark. To be.

  In addition, in the case of re-setting a mark, if an image already having a chapter mark is duplicated with a chapter mark, for example, a warning display such as "a chapter mark is already attached." Is displayed, an alarm sound is emitted, and the like.

  It is also possible to display a list of all the images with chapter marks. In this case, all the chapter mark information recorded as a separate file on the recording medium 18 is read out, and based on this, the image data of the image with the chapter mark is read out from the recording medium 18 and this is read out. This can be realized by performing playback.

[Modification 1]
In the above-described embodiment, at the time of reproduction, a chapter mark is added to an image of a target scene without stopping the reproduced image while checking the reproduced image displayed on the display screen 201 of the monitor receiver 200. Was made possible. Then, after at least one chapter mark is added, various edits including replacement (re-setting) of the chapter mark can be performed with reference to the image with the chapter mark. However, it is not limited to this.

  For example, there may be a case where a chapter mark is desired to be accurately attached to a target image from the beginning. In such a case, when the chapter mark key 154 is pressed during the reproduction of the target title, for example, as shown in FIG. 4, the display displayed on the display screen of the monitor receiver 200 is performed. The image 201G is a still image as an image to which a chapter mark is added.

  A reduced still image of five frames of images including two frames before and after the image centered on the chapter mark is displayed, and re-setting of the chapter mark and the like are received. A triangle mark is displayed near the timeline 201T corresponding to the timeline 201T and the image position where the chapter mark is added, and the deletion of the chapter mark, the designation of the range, and the like are received.

  Thereafter, when a predetermined operation for resuming the reproduction, such as depressing the reproduction key, is performed, the reproduction of the display image 201G is restarted, and the reduced still images S1, S2, S3, S4, S5, the timeline 201T, triangular marks M1, M2, M3,...

  By displaying the reduced still image, the timeline, and the triangle mark every time the chapter mark key 154 is pressed, the chapter mark can be reset, deleted, and the section can be specified. It is possible to perform accurate editing processing on the title while reproducing and viewing the title.

  In the first modification as well, when the chapter mark is reset, an image to which a new chapter mark is added is displayed on the display screen 201 of the monitor receiver 200 and reproduced from the image. Can be restarted. Further, when the AB deletion is performed, the reproduction can be restarted from the next image of the deleted image section, or the reproduction can be restarted from the image at the position of the next triangle mark. To be.

  Also, at the time of the reproduction described first, the mode in which the chapter mark is added without stopping the reproduction image, and the mode in which the reproduction image is stopped every time the chapter mark described as the first modification is added. Thus, both a mode for resetting the chapter mark and a mode for resetting the chapter mark can be mounted, and the user can switch and use the mode.

[Modification 2]
In the above-described embodiment, on the display screen 201 of the monitor receiver 200, the reduced still image is displayed so as to overlap the display of the moving image. However, it is not limited to this. For example, as shown in FIG. 11, on the display screen 201, the moving image display area 201M and the reduced image display area 201S may be divided so as not to overlap.

  In this case, a reproduced image of the title recorded on the recording medium 18 is displayed in the moving image display area 201M, and a reduced still image called a thumbnail or the like is displayed in the still image display area 201S. Without using this, the entire reproduced image of the title can be viewed without being hidden by a reduced still image or the like.

  As shown in FIG. 12, the reduced image display area 201S may be made as large as possible to display more reduced still images. Alternatively, the moving image display area may be provided below the display screen 201, and the still image display area may be provided above the display screen 201.

  Further, a moving image display area may be provided on the right side of the display screen 201 and a still image display area may be provided on the left side of the display screen 201. The area may be provided on the right side of the display screen 201. In short, the display screen 201 can be appropriately used separately for a moving image display area and a still image display area.

[Second embodiment (when a plurality of moving images are reproduced from different time points)]
In the case of the recording / reproducing apparatus of the first embodiment described above, when reproducing image information of a title (a group of information signals such as a broadcast program) recorded on a recording medium, a target scene or its target scene is reproduced. A chapter mark is added in the vicinity, an editing section is accurately specified based on the added chapter mark, and a desired editing can be performed. Therefore, the editing operation can be started seamlessly at the time of reproduction without being particularly aware of the reproduction mode and the edit mode.

  However, there are cases where it is desired to find a target scene as quickly as possible from a large amount of image information recorded on a recording medium. For example, if you want to find the target scene that you want to edit, such as deleting, extracting, or moving, from a movie broadcast program recorded on a recording medium, This is a case where the user wants to find out a target scene to be edited from image information recorded by a camera and recorded on a recording medium of a recording and reproducing apparatus.

  In such a case, if the reproduction is performed from the beginning of the image information recorded on the recording medium and the intended scene is viewed until the target scene is displayed on the display screen of the monitor receiver, the purpose and It takes time to find the scene to do. It is also conceivable that a so-called fast-forward playback is performed to find a target scene. However, in this case, there is a high possibility that the target scene is missed, and when there is a lack of certainty. There is.

  Therefore, in the recording / reproducing apparatus of the second embodiment, a plurality of small areas (sub-image display areas (child screens)) for displaying a moving image are provided on the display screen, and are recorded on a recording medium. For a given title, a plurality of moving images are reproduced simultaneously from different points in time, so that a target scene can be quickly found.

  Note that, also in the second embodiment, the image processing system is configured similarly to the image processing system of the first embodiment shown in FIG. Further, as shown in FIG. 13, the recording / reproducing apparatus 600 constituting the image processing system in this case is substantially the same as the recording / reproducing apparatus 100 of the first embodiment shown in FIG. 2 except for the display image forming circuit 50. It is configured similarly. Therefore, in the recording / reproducing apparatus 600 shown in FIG. 13, the same reference numerals are given to the same components as those of the recording / reproducing apparatus 100 shown in FIG. 2, and the detailed description thereof will be omitted. I do.

  In the recording / reproducing apparatus 600 according to the second embodiment, the speed of reading out the image data of the target title from the recording medium 18 and the processing speed of the MPEG video decoder 23 are sufficiently high. By providing the display image forming circuit 50 capable of simultaneously processing not only still images but also a plurality of moving images, a title selected to be reproduced can be reproduced simultaneously from a plurality of different points in time. .

[First example]
Hereinafter, some specific examples of the recording / reproducing apparatus 600 according to the second embodiment, which enable quick detection of an image of a target scene using moving image display, will be described. FIG. 14 is a diagram for describing a first example of a recording / reproducing apparatus 600 that enables quick detection of a target scene using moving image display.

  As shown in FIG. 14, the CPU 40 of the recording / reproducing apparatus 600 of this example can provide a first moving image display area 201M1, a second moving image display area 201M2, and a third moving image display area 201M3. It is. Then, the CPU 40 controls the buffer control circuit 17 to start the target title (a set of information signals such as a broadcast program), a time point 10 seconds after the head time and a reproduction time from the head time, and The reading of the image data is started from three time points, which are 20 seconds ahead of the reproduction time from the time point, and each of the read image data is supplied to the MPEG video decoder 23 through the multiplexing / demultiplexing circuit 16.

  The MPEG video decoder 23 performs a decoding process on each of the read image data starting from the three time points supplied through the multiplexing / demultiplexing circuit 16, and sequentially outputs the decoded image data to the display image forming circuit 50. To supply.

  The display image forming circuit 50 forms image data for displaying a moving image based on the three pieces of image data supplied at different read start times based on the respective pieces of image data. Supply.

  As shown in FIG. 14, the synthesizing circuit 26 displays the reproduced moving image corresponding to the image data from the head of the target title in the first moving image display area 201M1. A playback moving image corresponding to the image data from the time point 10 seconds after the playback time is displayed in the second moving image display area 201M2, and the playback time 20 seconds after the head time of the target title. Are synthesized so as to be displayed in the third moving image display area 201M3.

  The synthesized image data is supplied from the synthesizing circuit 26 to the NTSC encoder 27, where the NTSC encoder 27 generates an analog composite image signal (Cps) and a separate image signal (S), and these are analog image output terminals. 28 and 29.

  As described above, one title is reproduced from a plurality of points in time with a time difference provided, and each reproduced image is displayed, so that a target scene can be detected without missing a target scene. In other words, the images of the target scene are reliably displayed in the second moving image display area 201M2 and the third moving image display area 201M3 in which the image at a point earlier than the first moving image display area 201M1 is displayed. It can be detected and designated as an editing candidate point.

  Further, by setting the interval at the start of image reading to be relatively long, for example, several minutes or several tens of minutes, a plurality of target signals can be detected simultaneously and in parallel.

  Further, the playback speed (display speed) is changed between the moving image displayed in the first moving image display area, the moving image displayed in the second moving image display area, and the moving image displayed in the third moving image display area. Thus, for example, the moving image displayed in the second moving image display area and the moving image displayed in the third moving image display area have a reproduction speed that is two times faster than the moving image displayed in the first moving image display area. By making the time as fast as twice or three times, quick detection of the target scene can be promoted.

  Here, the playback speed of the moving image is not defined by the speed of reading data from the recording medium or the speed of processing the data, but is defined by the speed of displaying the moving image. That is, in this specification, the reproduction speed of a moving image is synonymous with the display speed of a moving image.

  Also, the time difference provided between a plurality of moving images need not necessarily be equal. Further, the number of moving image display areas provided is not limited to three. Two or more moving image display areas may be provided.

  In addition, the reference moving image is displayed in the first moving image display area 201M1, the moving image 10 seconds later is displayed in the second moving image display area 201M2, and the moving image 10 seconds later is displayed in the third moving image display area 201M3. It may be displayed.

  In this way, by reproducing the same title from a plurality of points in time with a time difference and displaying the respective reproduced images, for example, when fast-forwarding or rewinding quickly, the second moving image display area 201M2 or the second Based on the moving image displayed in the moving image display area 201M3, the target image (the image of the target scene) to be displayed in the first moving image display area 201M1 can be easily confirmed. it can.

  In FIG. 14, for example, a chapter mark is added to the image displayed in the first moving image display area 201M1 in the reduced image display area 201S in the same manner as in the case of the recording and reproducing apparatus of the first embodiment. When the image is displayed, the image displayed in the first moving image display area 201M1 is defined as a still image, and the frame images (still images) before and after the image are displayed based on the still image. As in the case described above, detailed editing point selection and setting can be performed.

  That is, the use of the reduced image display area 201S is the same as that of the recording / reproducing apparatus 100 according to the above-described first embodiment. When a chapter mark is added, the timeline and the triangle mark indicating the position of the image (editing candidate point) with the chapter mark in the title are recorded and reproduced according to the first embodiment. The information can be displayed on the display screen as in the case of the device 100.

  Still images displayed in the reduced image display area 201S are also formed in the display image forming circuit 50. That is, the display image forming circuit 50 generates the moving image data to be displayed in the first, second, and third moving image display areas 201M1, 201M2, and 201M3, and generates a plurality of still images to be displayed in the reduced image display area 201S. Is also something that can be done.

  Also, here, it has been described that the image data (moving image data) displayed in the first, second, and third moving image display areas 201M1, 201M2, and 201M3 are all formed in the display image forming unit 50. However, it is not limited to this. For example, a moving image displayed in the first moving image display area 201M1 and used as a reference image may be formed in the post video signal processing circuit 24.

  The operations of the buffer control circuit 17, the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the display image forming circuit 50, the synthesizing circuit 26, the NTSC encoder 27, and the like are controlled by the CPU 40, as shown in FIG. In addition, displaying a plurality of moving images on one screen is realized.

  In the first example, as audio data accompanying the image data to be reproduced, for example, audio data corresponding to an image displayed in the first moving image display area 201M1 is recorded through the buffer control circuit 17. It can be read from the medium 18 and reproduced through the MPEG audio decoder 19, the post audio signal processing circuit 20, and the D / A converter 21.

  That is, the sound to be reproduced is such that the sound corresponding to the moving image displayed in the first moving image display area 201M1 is reproduced, or the sound corresponding to the moving image displayed in the second moving image display area 201M2 is reproduced. Or a sound corresponding to a moving image displayed in the third moving image display area 201M3 can be reproduced.

[Second example]
In the case of the first example described above, by providing a reading start point (reproduction point) at predetermined intervals, oversight of an image of a target scene is prevented and quick detection of an image of a target scene is realized. I did it. In the case of the second example, for example, an image of a target scene as an edit candidate point can be quickly and easily detected from image data recorded for a long time.

  FIG. 15 is a diagram for explaining a display example of an image to be displayed on the display screen 201 of the monitor receiver by the recording / reproducing device 600 in the second example of the second embodiment. When a title to be reproduced is selected from among the titles (a group of information signals such as broadcast programs) recorded on the recording medium 18, the CPU 40 of the recording / reproducing apparatus 600 causes the display screen 201 to display as shown in FIG. First, a main image display area 201M is provided, and a timeline 201T corresponding to the total image data amount of the title selected to be reproduced is displayed.

  In this case, the formation of the main image display area 201M, the timeline 201T, and the reproduction position designation mark moving on the timeline 201T is performed by the CPU 40 using the data stored in the ROM 41. The main image display area 201 </ b> M, the timeline 201 </ b> T, and the reproduction position designation mark are displayed on the display screen of the monitor receiver 200 connected to the recording / reproducing apparatus 600 by supplying to the synthesizing circuit 26 through the circuit 16. You.

  Using the timeline 201T as a guide, the user of the recording / reproducing apparatus 600 operates, for example, an arrow key or the like of the remote controller 150 to move the reproduction position designation mark on the timeline 201T, thereby reproducing one or more moving images. Select and input points.

  The CPU 40 of the recording / reproducing apparatus 600 receives a selection input of a moving image reproduction point from the user, and displays reproduction points MK1, MK2, MK3,... Indicating the reproduction position of the moving image at the selected position. Note that an input item for setting a video playback time may be provided, and one or more playback points may be set by the video playback time, that is, a numerical value.

  Further, the CPU 40 of the recording / reproducing apparatus 600 forms a sub-image display area, which is a display area of a reproduced image, in accordance with the number of received moving image reproduction points, and sets a position corresponding to the received moving image reproduction point in the sub-image display area. Is read from the recording medium 18, and a frame image (still image) based on the read image data is displayed in the sub-image display area.

  In this case, the reproduction points MK1, MK2, MK3,... Are formed by the CPU 40 in the same manner as the timeline 201T, supplied to the synthesizing circuit 26, and displayed in an image. Further, from the frame image at the position corresponding to each reproduction point, under the control of the CPU 40, the image data forming the image of the corresponding frame is read out from the recording medium 18, and this is sent to the MPEG video decoder 23 through the multiplexing / demultiplexing circuit 16. The data is then MPEG-decoded and supplied to the display image forming circuit 50.

  In the display image forming circuit 50, image data for displaying a frame image, which is a still image, is formed in each sub-image display area, and the image data is supplied to the synthesizing circuit 26 and synthesized to be provided in one screen. A frame image at a position corresponding to the reproduction point is displayed in each sub-image display area.

  When a plurality of sub-image display areas are provided, the sub-image display area can be selected, and the CPU 40 of the recording / reproducing apparatus 600 determines the image of the sub-image display area where the cursor is positioned The same image is displayed in the main image display area 201M. The cursor for the sub-image display area is displayed by the CPU 40, and the display position is controlled.

  In the case of the example shown in FIG. 15, three points of the preceding, middle, and subsequent stages of the title selected to be reproduced are selected as reproduction points of the moving image, and the reproduction point MK1 is displayed on the timeline 201T. , MK2, and MK3 are displayed, and three sub-image display areas SG1, SG2, and SG3 are provided.

  Then, each of the frame images (still images) at the positions corresponding to the reproduction points MK1, MK2, and MK3 is, as described above, the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the display image forming circuit 50, and the synthesizing circuit 26. , NTSC encoder 27, and is displayed in each of corresponding sub-image display areas SG1, SG2, SG3 formed on the display screen.

  In the example shown in FIG. 15, the cursor CS for the sub-image display area is positioned in the sub-image display area SG1, and the same image as the sub-image display area SG1 is also displayed in the main image display area 201M. To be done.

  Note that, in this example, the image displayed in the main image display area 201M is to be displayed based on image data formed in the post video signal processing circuit 24.

  Then, when in the state shown in FIG. 15, the images displayed in the main image display area 201M and the sub image display areas SG1, SG2, and SG3 are frames at positions corresponding to the reproduction points designated by the user. It is an image (still image).

  In this state, by operating the remote controller 150, the position of the reproduction point is changed, or the cursor CS for the sub-image display area is moved to be positioned in another sub-image display area. Will be able to. The movement of the cursor CS with respect to the sub-image display area can be performed even after the reproduction of the actually selected title is started, as described below.

  Then, when an instruction to actually start playback of the selected title is given, such as when a playback key of the remote controller 150 is pressed, the CPU 40 of the recording / playback apparatus 600 causes the main image display area 201M and the sub-image display areas SG1, SG2 to be displayed. , SG3, the reproduction of the moving image is started.

  FIG. 16 is a diagram for explaining an image displayed on the display screen 201 of the monitor receiver 200 at the time of moving image reproduction by the recording / reproducing apparatus 600 of the second example of the second embodiment. . As described above, when the reproduction of the moving image is instructed, the CPU 40 sequentially reads the image data at the positions corresponding to the reproduction points MK1, MK2, and MK3 from the recording medium 18.

  Then, as in the case where a still image is displayed in the main image display area 201M and the sub image display areas SG1, SG2, and SG3, the CPU 40 performs the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the post video signal processing circuit 24, the display image forming circuit 50, the synthesizing circuit 26, and the NTSC encoder 27, and the image data sequentially read from the recording medium 18 are supplied to them, and as shown in FIG. A moving image reproduced from a corresponding reproduction point is displayed in each of the image display areas SG1, SG2, and SG3.

  Further, the CPU 40 of the recording / reproducing apparatus displays each of the reproduction points MK1, MK2, and MK3 so as to move in the reproduction direction in conjunction with the reproduction of the moving image as indicated by the arrow in FIG. The user can visually recognize the position of the image displayed in the image display areas SG1, SG2, SG3 of the title being reproduced. In FIG. 16, marks ST1, ST2, and ST3 indicated by dotted lines indicate start points of reproduction points MK1, MK2, and MK3.

  In the case of the example shown in FIG. 16, the cursor CS for the sub-image display area is positioned in the sub-image display area SG1, and is displayed in the main image display area 201M in the sub-image display area SG1. The same moving image as the moving image is displayed.

  As described above, the user of the recording / reproducing apparatus 600 of the second example edits through the moving images of the plurality of display areas having different reproduction points displayed in the three sub-image display areas SG1, SG2, and SG3. An image of a target scene to be used as a candidate point can be detected.

  When an image of the target scene or an image near the target scene is displayed in any of the sub-image display areas SG1, SG2, and SG3, an image of the target scene, or The cursor CS is positioned on the sub-image display area where the image near the target scene is displayed.

  As a result, the same moving image as the sub-image display area where the cursor CS is positioned is also displayed in the main image display area 201M, and an image of a target scene to be used as an editing candidate point is displayed from the sub-image display area. Can be detected through a moving image displayed in the main image display area 201M having a large display area.

  FIGS. 17 and 18 are diagrams for explaining the operation of the user and the recording / reproducing apparatus 600 when selecting an image to be used as an editing candidate point from among images of a target scene.

  As described with reference to FIG. 16, when the reproduction of the moving image from the plurality of reproduction points MK1, MK2, and MK3 is started simultaneously and the cursor CS is positioned in the sub-image display area SG1, the sub-image display area SG3 It is assumed that an image that appears to be a neighborhood of the target scene is displayed. At this time, the user operates the arrow keys of the remote controller 150 to position the cursor positioned in the sub-image display area SG1 in the sub-image display area SG3.

  The CPU 40 of the recording / reproducing apparatus 600 positions the cursor CS in the sub-image display area SG3 and displays the cursor CS in the sub-image display area SG3 as shown in FIG. 17 in response to an instruction from the user through the remote controller 150. The displayed moving image is also displayed in the main image display area 201M.

  Then, when the image of the target scene is displayed in the main image display area 201M, the user of the recording / reproducing apparatus 600 operates to depress the chapter mark key 154 provided on the remote controller 150.

  Upon receiving a signal indicating that the chapter mark key 154 has been pressed from the remote controller 150, the CPU 40 of the recording / reproducing apparatus can specify the frame image displayed in the main image display area 201M at that time. For example, a time code or a frame number is obtained as important information, and this is recorded on the recording medium 18 as information indicating an editing candidate point.

  At the same time, the CPU 40 displays, on the timeline 201T, an editing candidate point mark CN (1) indicating the position in the title of the frame image at the time when the chapter mark key is pressed. The editing candidate point mark is displayed in such a manner that it can be immediately distinguished from the reproduction point mark, for example, by changing its color and shape.

  As described above, even when the chapter mark key 154 is pressed, the display of the moving images displayed in the main image display area 201M and the sub image display areas SG1, SG2, and SG3 is stopped. The display of the moving image in each display area is continued.

  Thereafter, it is assumed that an image that appears to be near the target scene is displayed in the sub-image display area SG2. At this time, the user operates the arrow keys of the remote controller 150 to move the cursor CS positioned in the sub-image display area SG3 as shown in FIG. 17 to the sub-image display area SG2 as shown in FIG. To

  The CPU 40 of the recording / reproducing apparatus 600 positions the cursor CS in the sub-image display area SG2 and displays the cursor CS in the sub-image display area SG2 as shown in FIG. 18 in response to an instruction from the user through the remote controller 150. The displayed moving image is also displayed in the main image display area 201M.

  Then, when the image of the target scene is displayed in the main image display area 201M, the user of the recording / reproducing apparatus 600 operates to depress the chapter mark key 154 provided on the remote controller 150.

  When receiving a signal indicating that the chapter mark key 154 has been pressed from the remote controller 150, the CPU 40 of the recording / reproducing device 600 can identify the frame image displayed in the main image display area 201M at that time. A possible time code or frame number is obtained and recorded on the recording medium 18 as information indicating an editing candidate point together with, for example, title identification information.

  At the same time, the CPU 40 displays on the timeline 201T an editing candidate point mark CN (2) indicating a position in the title of the frame image at the time when the chapter mark key is pressed.

  In this way, using images reproduced from a plurality of different reproduction points and displayed in different sub-image display areas, the user can quickly detect an image of a target scene as an edit candidate point, and Points can be registered in the recording medium 18.

  When one edit candidate point is selected from the edit candidate points CN (1), CN (2),... To be registered, the first embodiment described above with reference to FIGS. In the same manner as in the case of the recording / reproducing apparatus 100 of the embodiment, a frame image (still image) near the editing candidate point is displayed, the final editing point of the target scene is specified, and this is stored in the recording medium 18. The final editing point is used as a reference point so that various editing can be performed.

  Next, the operation of the recording / reproducing apparatus 600 according to the second example of the second embodiment will be described with reference to the flowcharts shown in FIGS. As shown in FIG. 19, the power is turned on to the recording / reproducing apparatus 600 according to the second embodiment, and an instruction to display a list of titles of broadcast programs and the like recorded on the recording medium 18 is input. Then, the CPU 40 refers to, for example, a directory of the recording medium 18 through the buffer control circuit 17 and forms an image signal for displaying a list of titles recorded on the recording medium 18, and multiplexes this with the multiplexing / demultiplexing circuit 16. To the synthesizing circuit 26 to synthesize and display a list of titles on the display image 201G of the monitor receiver 200 (step S201).

  Then, the CPU 40 of the recording / reproducing apparatus 600 receives a title selection input from the user through the remote controller 150 or the operation panel provided on the front panel surface of the recording / reproducing apparatus 600 (step S202), as shown in FIG. Next, a main image display area 201M is formed, and a timeline 201T is formed to display them (step S203).

  Next, the CPU 40 of the recording / reproducing device 600 receives a reproduction point selection input or an operation instruction input from the user through the remote controller 150 or the like (step S204). Then, the CPU 40 determines whether or not the input from the user is an instruction to end the reproduction (step S205).

  If it is determined in step S205 that the input received from the user in step S204 is an instruction to end reproduction, the process shown in FIG. 19 is terminated, and, for example, the process waits for input from the user. State. In the determination processing of step S205, when it is determined that the input from the user accepted in step S204 is not a reproduction end instruction, the CPU 40 determines whether or not the input from the user is a reproduction start input. (Step S206).

  When it is determined in step S206 that the input from the user is not the reproduction start input, in this example, the CPU 40 repeats the processing from step S202, and inputs the title selection input, the reproduction point selection input, and the operation instruction input. To accept.

  In the determination processing of step S206, when it is determined that the input from the user accepted in step S204 is an instruction to start the reproduction, the CPU 40 determines the reproduction point selected and input by the user as described above. A sub-image display area is provided in accordance with the number of images, and reproduction of a moving image from the reproduction point is started (step S207).

  Then, the CPU 40 receives an instruction input from the user, such as an input for setting an edit candidate point, an input for moving a cursor, and an input for selecting an edit candidate point (step S208). It is determined whether the input is a setting input (step S209).

  In the determination processing of step S209, when it is determined that the received instruction input from the user is an input setting of an editing candidate point, the CPU 40 uses the information for specifying the image displayed in the main image display area. A certain time code or a frame number is acquired (step S210). Then, the information for specifying the image acquired in step S210 and the information (title information) for specifying the title to be reproduced are recorded on the recording medium 18 in association with each other (step S211), and the processing from step S208 is performed. repeat.

  In the determination process of step S209, when it is determined that the received instruction input from the user is not the setting input of the editing candidate point, the CPU 40 transmits the received instruction input from the user to the cursor CS with respect to the sub-image display area. It is determined whether the input is a movement instruction input (step S212).

  In the determination processing of step S212, when it is determined that the input from the user accepted in step S208 is a movement instruction input of the cursor CS with respect to the sub-image display area, the CPU 40 responds to the instruction input by the user to The cursor CS for the image display area is moved (step S213).

  Then, CPU 40 changes the display image in main image display area 201M to be the same image as the sub-image display area where cursor CS is positioned (step S214), and then repeats the processing from step S208. I do.

  If it is determined in step S212 that the input received from the user in step S208 is not an instruction to move the cursor CS to the sub-image display area, the process proceeds to a process illustrated in FIG. It is determined whether or not the received input from the user is a selection input of an editing candidate point to be registered according to an instruction from the user (step S215).

  In the determination processing of step S215, when it is determined that the input from the user accepted in step S208 is the selection input of the editing candidate point, the CPU 40 stops the reproduction of the moving image and stores the moving image in the recording medium 18. The information for identifying the selected frame image of the selected editing candidate point is read, and the image data forming the frame image of the selected editing candidate point and the image data of a plurality of neighboring frame images are read from the recording medium 18. Is displayed as a still image (step S216).

  The process in step S216 is performed through the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, the display image forming circuit 50, the synthesizing circuit 26, and the NTSC encoder 27. The display image forming circuit 50 can form image data for displaying a moving image in a plurality of sub-image display areas, and can display the image data as shown in FIGS. 4 and 5 of the first embodiment. Image data for displaying such a still image (thumbnail) can also be formed.

  The recording / reproducing apparatus 600 of the second embodiment can also scroll a still image to be displayed as shown in FIG. 4, for example, similarly to the case of the recording / reproducing apparatus 100 of the first embodiment. To be displayed. Then, the CPU 40 receives a selection input of a frame image to be finally used as an editing point from among a plurality of still images displayed based on the selected editing candidate point (step S217).

  The selection input in step S217 is positioned at one of a plurality of still images to be displayed based on the selected editing candidate point, as in the case of the recording / reproducing apparatus of the first embodiment. By moving the cursor for selecting a still image according to an instruction from the user, a final image at the editing point can be selected.

  The CPU 40 determines the input key received in step S217 (step S218). In the determination process of step S218, when it is determined that the accepted input key is the down key (down arrow key), it is determined that the editing point is not selected, and the main image display area is stopped in step S216. Then, the display of the moving image in the sub-image display area is restarted (step S221), and the processing from step S208 shown in FIG. 19 is repeated.

  If it is determined in step S218 that the input key received in step S217 is the enter key, the currently selected frame image is used as the editing point instead of the editing candidate point selected in step S207. Information for specifying an image is obtained (step S219).

  Thereafter, the title information and the information for specifying the frame image acquired in step S219 are recorded on the recording medium 18 as edit point information (step S220). Then, the display of the moving image in the main image display area and the sub image display area, which has been stopped in step S216, is restarted (step S221), and the processing from step S208 shown in FIG. 19 is repeated.

  In addition, in the determination processing of step S218, when it is determined that the input key received in step S217 is the left / right key (left arrow key or right arrow key), the selection of the still image is changed, that is, the still image is positioned. It is determined that this is an instruction to move the cursor, and the displayed still image (thumbnail) is selected by moving the cursor (step S222). Thereafter, step S217 is repeated.

  In addition, in the determination process of step S215, when it is determined that the input received from the user in step S208 is a selection input of an editing candidate point, the CPU 40 executes a process corresponding to the instruction input received from the user. (Step S223). In step S223, among various processes such as pause, fast forward, fast reverse, and stop of reproduction, a process according to a request from the user is performed.

  As described above, in the recording / reproducing apparatus 600 according to the second example of the second embodiment, a plurality of different reproduction points are designated for one title, and a moving image is reproduced from the plurality of different reproduction points simultaneously. Is started, an image of a target scene can be quickly found (detected).

  Then, when the user detects the image of the target scene, the image is specified as the image of the editing candidate point, and the image of this editing candidate point and the image near the editing candidate point are displayed as a still image, and the accurate An edit point is made selectable. Then, information for specifying the image at the selected edit point is obtained, and this is recorded on the recording medium 18 as edit candidate point information. In addition, various edits can be performed using the selected edit point, such as deleting, moving, and extracting a section sandwiched between the edit points.

[Modification 1 of Second Example]
By the way, in the case of the recording / reproducing apparatus of the second example, as shown in FIGS. 15 to 18, a plurality of moving images are reproduced simultaneously from a plurality of different reproducing points. Therefore, it is conceivable that the subsequent reproduction point may catch up with the editing candidate point set at the position preceding in time. In this case, the reproduction after the preceding reproduction start point is the second reproduction.

  Focusing on this point, in the recording / reproducing apparatus according to the modified example of the second example, the reproduction of the unreproduced portion and the selection of the edit point based on the edit candidate point that the subsequent reproduction point catches up with are performed simultaneously. It is like that.

  FIG. 21 is a diagram for explaining a process in a case where a subsequent playback point catches up with a previously set editing candidate point in the recording / playback apparatus according to the second example of the second embodiment. As in the case of the example described with reference to FIGS. 17 and 18, it is assumed that three reproduction points MK1, MK2, and MK3 whose reproduction start points are ST1, ST2, and ST3 are designated and reproduction is started.

  Then, the cursor CS is positioned in the sub-image display area SG3, the edit candidate point CN (1) is set after ST3, and the cursor CS is positioned in the sub-image display area SG2, and the edit candidate point is set after ST2. CN (2) is set. It is assumed that the reproduction process is continued while the cursor CS is positioned in the sub-image display area SG2, and the reproduction point MK2 has caught up to the previously set editing candidate point CN (1) as shown in FIG.

  As described above, the CPU 40 of the recording / reproducing apparatus 600 determines, for example, whether the time code or the frame number of the frame image of the edit candidate point and the reproduction point has caught up with the previously set edit candidate point. When the time code and the frame number of the two are monitored, it can be determined that the subsequent reproduction point has caught up to the editing candidate point.

  Then, in the case of the example shown in FIG. 21, upon detecting that the subsequent reproduction point MK2 has caught up with the previously set editing candidate point CN (1), the CPU 40 displays the editing candidate point CN in the sub-image display area SG2. (1) and displaying the image in the vicinity as a still image. In addition, in the sub-image display areas SG1 and SG3 other than the sub-image display area SG2 displaying the image corresponding to the reproduction point MK2, the reproduction of the moving image is continued.

  When the cursor CS is positioned in the sub-image display area displaying the moving image corresponding to the playback point that has caught up to the editing candidate point, the still image displayed in the sub-image display area is used as the main image. It is also displayed in the image display area 201M. In the case of the example shown in FIG. 21, the still image displayed in the sub-image display area SG2 is also displayed in the main image display area 201M.

  In the case of the example shown in FIG. 21, the editing candidate point is CN (1), and the editing candidate point is CN (1), the two frames before and four frames of the next two frames. The image data to be formed is read out, and as shown in the main image display area 201M of FIG. 21, the image CN (1) of the editing candidate point and the images CN (1) -2 and CN (2) adjacent thereto are displayed. -1, CN (1) +1, CN (1) +2 are displayed as thumbnails.

  Then, as shown in FIG. 21, in the first stage, the cursor MCS is positioned in the display area of the image CN (1) of the editing candidate point displayed in the main image display area 201M, and the cursor MCS is positioned. The displayed image is also displayed large on the entire surface of the main image display area 201M.

  The cursor MCS can be moved, for example, by operating the left and right arrow keys of the remote controller 150, as in the case of the first embodiment described above, and the frame in which the cursor MCS is positioned An image can be selected and registered as an edit point.

  Therefore, as shown in FIG. 21, the down arrow key is depressed without pressing the enter key, left arrow key, and right arrow key, which are operations for selecting an edit point even when a still image is displayed. When no operation is performed for a predetermined time or more, the reproduction of the moving image is resumed also in the sub-screen display area SG2 and the main screen display area 201M displaying the still image.

  FIG. 22 is a diagram for explaining a case where the cursor CS is not positioned in the sub-image display area SG2 displaying the moving image corresponding to the reproduction point MK2 that has caught up to the editing candidate point CN (1). In this case, an image at a position corresponding to the editing candidate point CN (1), an image of the editing candidate point CN (1), and an image in the vicinity thereof are displayed as thumbnails only in the sub-image display area SG2. To

  However, as described above, the editing point can be determined by selecting a still image only through the main image display area 201M. Therefore, unless the cursor CS is positioned at the sub-image display area SG2, the editing point cannot be selected. For example, the reproduction of the moving image is restarted in the sub-image display area SG2 after a predetermined time has elapsed.

  In this example, the selection and registration of the edit point can be performed only through the main image display area 201M. Therefore, as shown in the display example of FIG. However, it is not necessary to display an image in the vicinity as a so-called thumbnail.

  FIG. 23 is a diagram for explaining the operation of the recording / reproducing apparatus after the editing point has been registered based on the reproduction point that has caught up to the editing candidate point. In the state shown in FIG. 21, the left arrow key and the right arrow key of the remote controller 150 are used to move the target still image among the five still images displayed as thumbnails in the main image display area 201M as thumbnails. Is operated to position the cursor MCS, and by pressing the enter key, an edit point is selected and registered.

  In this case, the edit point DC (1) is set on the recording medium 18 instead of the nearest edit candidate point CN (1). Then, as shown in FIG. 23, the determined edit point DC (1) is shown on the timeline 201T, and thereafter, the reproduction of the moving image from the reproduction point MK2 is restarted.

  In this case, the edit point is registered instead of the edit candidate point. However, the edit point may be displayed by changing the color of the mark indicating the edit candidate point CN (1) and the edit point DC (1). It is also possible to display both the candidate points and the edit points in a distinguishable manner.

  Also, before the reproduction point catches up with the editing candidate point, the CPU 40 manages the time interval between the reproduction point and the editing candidate point, and for example, sends a message such as "It is an editing candidate point in XX seconds." To be displayed. By doing so, the user can set the cursor CS to the corresponding sub-image display area in advance.

  The reproduction point, the editing candidate point, and the mark indicating the position of the editing point to be displayed on the timeline 201T are, for example, green for the reproduction point, blue for the editing candidate point, and blue for the editing point. Change the color, such as red, or change the shape of the mark indicating the playback point, such as a triangle, the mark indicating the editing candidate point as a square, the editing point as a circle, etc. By shifting the display position of each mark, the user can be clearly notified of the position of each mark.

[Modification 2 of Second Example]
In the recording / reproducing device 600 of the second example described above, when a plurality of reproduction points are specified, the reproduction speeds of the moving images from the respective reproduction points are all equal. However, the playback speed may be changed for each playback point.

  24 to 26 illustrate an example in which a plurality of playback points are set, and when the playback is performed simultaneously from each of the plurality of playback points, the playback speed is varied according to the position of the playback point. FIG.

  As shown in FIG. 24, when three reproduction points MK1, MK2, and MK3 are selected and a moving image is reproduced simultaneously from these three reproduction points, the reproduction of the moving image at the reproduction point MK1 is performed at double speed (in the figure, In this case, the reproduction of the moving image at the reproduction points MK2 and MK3 is performed at the same speed (described as “× 1” in the figure).

  In the case of the example of FIG. 24, the middle part and the latter part of the title are reproduced at the same speed, but the former part is reproduced at the double speed, so that the middle part and the latter part of the title are reproduced at the normal reproduction speed. While it is possible to find the image of the target scene, the former part of the title is reproduced at double speed, so that the image of the target scene is detected more quickly. be able to.

  When the playback speed is changed in accordance with a plurality of playback points selected in this way, for example, high-speed playback is performed in a portion where the target scene is unlikely to exist, and the target scene may exist. The reproduction speed can be set for each reproduction point to be selected according to the user's purpose, for example, to reproduce at a constant speed or at a low speed in a portion having high performance.

  The setting of the playback speed for each playback point can be performed through the remote controller 150. The CPU 40 changes the speed at which data is read from the recording medium 18 for each selected playback point, or changes the MPEG video decoder 23 By adjusting the processing speed in the display image forming circuit 50 or the like, it is possible to change the reproduction speed of the moving image at each reproduction point.

  In the second modification, as in the case of the second example of the second embodiment, when a plurality of editing candidate points are set, one of the plurality of editing candidate points is edited. A candidate point is selected, and an image (still image) at a position corresponding to the editing candidate point and a nearby image (still image) at a position corresponding to the editing candidate point are displayed in a scrollable manner. The editing point to be used at the time of editing can be set.

  In this case, the number of still images to be displayed is changed for the editing candidate points in the sections having different playback speeds. FIG. 25 and FIG. 26 are diagrams for explaining processing in a case where selection of an edit point is accepted based on edit candidate points in sections having different playback speeds.

  When one editing candidate point is selected from a plurality of editing candidate points, for example, as shown in FIG. 25, the cursor CST that can be moved in units of editing candidate points on the timeline 201T is The operation can be performed by operating the left and right arrow keys and pressing the enter key 154.

  Then, when the selected editing candidate point is in the section reproduced at the same speed, as shown in FIG. 25, the selected editing candidate point (in FIG. 25, the editing candidate point CN (1)) Is displayed in the main image display area 201T in thumbnails, and the image of one frame before and after the image is displayed as a thumbnail to select an editing point.

  Similarly, when the selected editing candidate point is in the section reproduced at 2 × speed, as shown in FIG. 26, the selected editing candidate point (in the case of FIG. 26, the editing candidate point CN (2 )), And two frames before and after two frames thereof are displayed as thumbnails in the main image display area 201T, and an editing point is selected. As described above, in the section where the playback speed is fast, more thumbnails for selecting editing points are displayed than in the section where the playback speed is slow.

  As described above, changing the number of so-called thumbnail images for selecting an editing point according to the playback speed is performed when the user marks an editing candidate point on a screen with a high playback speed so that the editing This is because there is a high possibility that the user is away from the editing point. In other words, the higher the playback speed, the higher the possibility that the interval between the actually marked edit candidate point and the target edit point becomes larger, so the number of displayed still images adjacent to the edit candidate point in proportion to the playback speed More. As a result, the editing point can be selected more quickly.

  Then, when information for specifying the image of the editing candidate point is recorded on the recording medium 18 in accordance with an instruction from the user, information indicating the reproduction speed of the section to which the editing candidate point belongs is also recorded. If this information is used, the number of still images for selecting an editing point can be made to correspond to the reproduction speed under the control of the CPU 40.

  25 and 26, CN (n) +1 indicates an image one frame ahead of the editing candidate point CN (n), and CN (n) -1 indicates an image one frame before the editing candidate point CN (n). Similarly, in FIG. 26, CN (n) +2 indicates an image two frames ahead of the editing candidate point CN (n), and CN (n) -2 indicates an editing candidate point CN (n). Means the image two frames before.

[Modification 3 of Second Example]
By the way, as described above, when the reproduction speed can be set for each reproduction point, a subsequent reproduction point may overtake a preceding reproduction point. In this case, the correspondence between the reproduction point and the sub-image display area on the screen may be deviated, and the information displayed on the screen may be difficult to see.

  FIG. 27 to FIG. 29 are diagrams for explaining a case where a subsequent reproduction point overtakes a preceding reproduction point. As shown in FIG. 27A, it is assumed that three reproduction points MK1, MK2, and MK3 are selected, and the reproduction point MK1 performs double-speed reproduction, and the reproduction points MK2 and MK3 perform equal-speed reproduction.

  Playback is started from the state shown in FIG. 27A, and after a certain period of time, as shown in FIG. 27B, the playback point MK1 passes the playback point MK2. In this case, the CPU 40 of the recording / reproducing apparatus 600 changes the moving image displayed in the sub-image display areas SG1, SG2, SG3 according to the positions of the reproduction points MK1, MK2, MK3 on the title.

  In the case of the example shown in FIG. 27, as shown in FIG. 27B, when the reproduction point MK1 passes the reproduction point MK2, the CPU 40 displays the image of the reproduction point MK2 in the sub-image display area SG1, and The display area is switched (switched) so that the image of MK1 is displayed in the sub-image display area SG2.

  Thereby, the arrangement order of the reproduction points MK1, MK2, and MK3 moving on the timeline 201T matches the arrangement order of the sub-image display areas SG1, SG2, and SG3, and the relationship between the reproduction point and the sub-image display area is changed. Without being confused, it is possible to prevent inconveniences such as display information being difficult to see and incorrect processing.

  Note that the case where the subsequent playback point overtakes the preceding playback point is not limited to the case where the playback speeds are different. For example, as shown in FIG. 28A, when each of the selected playback points MK1, MK2, and MK3 is to be played back at the same speed (described as “× 1” in the figure), for example, the playback point MK3 It is assumed that the reproduction point MK2 catches up with the editing candidate point registered at the time of reproduction, and as described above, the reproduction point MK2 stops to determine the editing point.

  In such a state, since the reproduction points MK1 and MK3 do not stop, the reproduction point MK1 may overtake the reproduction point MK2 while the reproduction point MK2 is stopped. Even in such a case, as shown in FIG. 28A, when the reproduction point MK1 passes the reproduction point MK2, the CPU 40 displays the image of the reproduction point MK2 in the sub-image display area SG1, and displays the image of the reproduction point MK1. Are displayed in the sub-image display area SG2.

  Thereby, the arrangement order of the reproduction points MK1, MK2, and MK3 moving on the timeline 201T matches the arrangement order of the sub-image display areas SG1, SG2, and SG3, and the relationship between the reproduction point and the sub-image display area is changed. Without being confused, it is possible to prevent inconveniences such as display information being difficult to see and incorrect processing.

  Also, as shown in FIG. 28B, when the reproduction point MK1 catches up with the reproduction point MK2, the reproduction points MK1 and MK2 thereafter reproduce the same moving image. In addition to the fusion, the sub-image display area is also integrated into two sub-image display areas SGF and SGE.

  Then, an image at the reproduction point where the reproduction points MK1 and MK2 are fused is displayed in the sub-image display area SGF, and an image at the reproduction point MK3 is displayed in the sub-image display area SGE. Thus, the same moving image can be prevented from being displayed in a plurality of sub-image display areas, and inconveniences such as difficulty in detecting an image of a target scene can be prevented.

[Modification 4 of Second Example]
Also, in the same manner as in the case where the preceding playback point is overtaken by the subsequent playback point described in the third modification of the second example described above, the playback of the preceding playback point has been completed to the end of the title. The processing in the case also becomes a problem. In this case, three measures can be considered.

  FIG. 29 is a diagram for explaining the processing when the preceding reproduction point has been reproduced up to the end of the title. First, FIG. 29A shows that, when the reproduction point MK3 to be reproduced from the latter part of the title has been reproduced to the end of the title, the reproduction point MK3 becomes the reproduction point from the beginning of the title and the reproduction is continued. In this case, the images displayed in the sub-image display areas SG1, SG2, and SG3 are also replaced in accordance with this.

  FIG. 29B shows that, when the reproduction point MK3 to be reproduced from the latter part of the title has been reproduced to the end of the title, the movement of the reproduction point MK3 is stopped at the end of the title and the state is maintained. Is shown. Therefore, in the case of FIG. 29B, when all of the reproduction points MK1 and MK2 have been reproduced to the end of the title, the same image is displayed in the sub-image display areas SG1, SG2 and SG3. Will be done.

  FIG. 29C shows that, when the reproduction point MK3 to be reproduced from the latter part of the title has been reproduced to the end of the title, the reproduction point MK3 and the reproduction image at the position corresponding to the reproduction point MK3 are displayed. The sub-image display area SG3 that has been erased is deleted, and only the reproduction points MK1 and MK2 that have not yet been reproduced to the end and the sub-image display areas SG1 and SG2 that display the corresponding images are left.

  By using any of the measures shown in FIGS. 29A, 29B, and 29C, it is possible to prevent inconveniences such as making information displayed on a screen difficult to see and understand, and to relatively easily make an image of a target scene. Will be able to find out.

[Third example]
In the recording / reproducing apparatus of the third example, as in the second example described above, the user does not set the position and the number of the reproduction points, but the number of the reproduction points by the reproduction speed of the image. By automatically controlling the recording / reproducing apparatus to change the position or the position, a target image of a target scene can be quickly and accurately detected from a series of titles. The recording / reproducing apparatus of the third example is also the same as the recording / reproducing apparatus 600 shown in FIG.

  In the case of the recording / reproducing apparatus 600 of the third example, at the time of reproducing the title, the reproduction speed of the title can be freely set. The setting of the reproduction speed can be performed through the remote controller 150. Then, at the time of reproduction, a reproduced image is displayed on the entire surface of the display screen 201 as shown in FIG. At the same time, a sub-image display area SG1 is provided in a lower portion of the display screen 201, and a prefetch image is displayed here.

  Here, the reproduction point in the title of the image displayed on the entire display screen 201 is indicated by the current reproduction position mark NL on the timeline 201, and the reproduction point of the image displayed in the sub-image display area SG1 is displayed. The playback point in the title is indicated on the timeline 201 by a prefetch point PT1.

  In the example of FIG. 30, the reproduction is performed at double speed (in FIG. 30, described as “× 2”) as indicated by the reproduction speed 201C. The state shown in FIG. 30 is the same as the state shown in FIG. 31A. If the reproduction speed is, for example, about twice the reproduction speed, the reproduction speed is too high, and there is little inconvenience such that the image of the target scene is missed.

  However, when the reproduction speed becomes relatively high, for example, 5 times speed, the possibility of missing the image of the target scene increases. Therefore, as shown in FIG. 31B, when the reproduction speed is, for example, 5 × speed, two sub-image display areas SG1 and SG2 are provided, and the read-ahead points PT1 and PT2 are separated from each other by a predetermined interval. The reproduced image from the position corresponding to is displayed.

  Further, as shown in FIG. 31C, when the reproduction speed is, for example, 10 × speed, three sub-image display areas SG1 and SG2 are provided, and the read-ahead points PT1 and PT2 separated by predetermined intervals are provided for these areas. , PT3.

  In this way, by increasing the number of sub-image display areas for displaying pre-read images as the reproduction speed increases, when the reproduction speed is high, a plurality of different reproduction points can be set through a plurality of sub-image display areas. Can be detected without overlooking the target image of the target scene.

  In the third example, an image displayed on the entire display screen 201 is formed by the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, and the post video signal processing circuit 24. The images displayed on SG1, SG2, SG3,... Are formed by the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, and the display image forming circuit 50.

  Then, the image from the post video signal processing circuit 24 and the image to be displayed in one or more sub-image display areas from the display image forming circuit 50 are synthesized in the synthesizing circuit 26 and output through the NTSC encoder 27. To be done.

  Further, as described above, the images based on the image data from a plurality of playback points including the current playback position are to be played back simultaneously, but are sequentially recorded by the buffer control circuit 17 controlled by the CPU 40. Image data read from different playback points on the medium 18 can be combined and processed as continuous image data from each playback point.

  When the image of the target scene is displayed in the sub-image display area, as shown in FIG. 32, it can be moved corresponding to each of the reproduction points PT1, PT2, PT3,... On the timeline 201T. Position the cursor CST at the target playback point. As a result, a frame image for setting an edit point is displayed on the display screen with reference to the image of the reproduction point where the cursor CST is positioned (in the example of FIG. 32, the image of the reproduction point PT2).

  In the case of the example of FIG. 32, a total of five frame images, that is, two images before and after the reproduction point PT2 where the cursor CST is positioned, that is, images PT2-2, PT2-1, PT2, PT2 + 1, Five frame images PT2 + 2 are displayed in a scrollable manner. Then, by moving the movable cursor CS on the displayed five frame images, a final editing point can be selected and registered in the recording medium 18.

  As described with reference to FIG. 31, when the playback speed is 2 ×, one sub-image display area is used. When the playback speed is 5 ×, two sub-image display areas are used. In the case where the reproduction speed is 10 times speed, it has been described that three sub-image display areas are used. However, the present invention is not limited to this.

  For example, the number of sub-image display areas used according to the reproduction speed may be arbitrarily set, and the interval between each reproduction point may be arbitrarily set. When two or more sub-image display areas are used, the interval between the current playback position and the first playback point is made different from the interval between the first playback point and the playback point on the second surface. As described above, the intervals between the reproduction points including the current reproduction position may be made different. Of course, the intervals between the reproduction points including the current reproduction position may all be equal.

[Fourth example]
In the case of the fourth example, the editing point of the title to be edited this time is quickly detected and registered by reusing the editing point registered in the past.

  For example, in the case of a continuous drama television broadcast program, commercials are often inserted at approximately the same time, although the program content changes each time it is broadcast. Further, in a program broadcast every week, there is a case where a corner to be broadcast at a fixed time is unnecessary.

  As described above, in a case where a scene to be edited, such as movement or deletion, is broadcast at a substantially fixed time in a target program, the program is recorded and reproduced according to the second embodiment. When the recording is performed by the device on the recording medium 18 and the editing points are registered and editing is performed, the information indicating the editing points is registered in the recording medium 18 and can be reused.

  That is, the editing point information recorded on the recording medium 18 stores the title and one or more editing points in association with each other. The title information is also added to a main information signal called a title of a broadcast program or the like recorded on the recording medium 18.

  Therefore, when reproducing the title recorded on the recording medium, the CPU 40 checks whether or not there is edit point information having the same title identification information. Information indicating a point is formed, and this is combined with a reproduced image and displayed.

  FIGS. 33 and 34 are diagrams for explaining an image in which the editing candidate point information is displayed using the past editing point information in the fourth example. As shown in FIG. 33, a reproduced image of a title to be reproduced is displayed on the entire display screen 201.

  In this case, if editing point information having the same title identification information as the reproduced title already exists on the recording medium 18, the editing candidate points PP1, PP2, PP3 are displayed on the timeline 201T based on the editing point information. Is displayed, and the image of the title corresponding to the position indicated by each editing candidate point is displayed in the sub-image display areas SG1, SG2, SG3.

  However, for example, even if it is a continuous program that is broadcast at a fixed time every week, it is difficult to imagine that the edit point for the program for the previous broadcast is exactly the same as the edit point for the program for the current broadcast. However, errors of a few seconds can occur.

  Therefore, similarly to the above-described first to third examples, the frame image adjacent to the editing candidate point is displayed in a scrollable manner, and the editing point is determined from the displayed frame images. FIG. 34 shows a state in which a frame image adjacent to the editing candidate point is displayed.

  That is, in FIG. 34, the cursor CST is positioned at the first edit candidate point PP1 among the three displayed edit candidate points PP1, PP2, and PP3. Then, based on the image of the editing candidate point PP1, frame images for two frames before and after each frame are displayed in a scrollable manner as images for selecting an editing point.

  In this state, the editing point is determined by performing a determination operation such as pressing the determination key with the cursor CS positioned at the target frame image, and recording the determined image position as the editing point. It can be registered in the edit point information of the medium.

  The left arrow key of the remote controller 150 is pressed, and after the cursor CS is positioned at the leftmost frame image among the five frame images displayed in the frame image display area 201S, the left arrow key is further pressed. When operated, the frame image is scrolled to the right in frame units.

  Further, the right arrow key of the remote controller 150 is pressed, and after the cursor CS is positioned at the rightmost frame image among the five frame images displayed in the frame image display area 201S, the right arrow key is further pressed. When the operation is performed, the frame image is scrolled leftward by one frame unit.

  Also in the case of the fourth example, an image displayed on the entire display screen 201 is formed by the multi-multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, and the post-video signal processing circuit 24. The images displayed in the image display areas SG1, SG2, SG3,... And the frame images displayed in the frame image display area 201S are formed by the multiplexing / demultiplexing circuit 16, the MPEG video decoder 23, and the display image forming circuit 50. Things.

  Then, the image from the post video signal processing circuit 24 and the image from the display image forming circuit 50 are combined in the combining circuit 26 and output through the NTSC encoder 27.

  Further, as described above, images based on image data from a plurality of playback points are played back simultaneously, but are sequentially read from different playback points on the recording medium 18 by the buffer control circuit 17 controlled by the CPU 40. Image data is organized and processed as continuous image data from each playback point.

  In this way, by using the editing point information registered in the past, the editing points can be quickly and accurately determined and registered for broadcast programs such as serial dramas that are to be recorded regularly. can do.

  In the fourth embodiment, the correspondence between the already registered editing point information and the newly recorded title is determined using title identification information for identifying each title. explained. As the title identification information in this case, for example, in addition to a title name and a title number input by a user or the like, information including a recording date and time, a day of the week, a broadcast channel, and the like can be used.

  In addition, the management of the editing candidate points and the editing points throughout may be performed by position information and time information for the entire moving image, such as the above-described time code (time stamp) and frame number, or recorded time information and the entire recording medium. Position information may be used.

  In the above-described embodiment, the information on the chapter mark, the information on the editing candidate point, and the information on the editing point have been described as being recorded by providing a separate file on the recording medium 18. However, the present invention is not limited to this. Absent. The information about the chapter mark, the information about the editing candidate point, and the information about the editing point may be recorded in the memory of the recording / reproducing apparatus 100.

  In this case, if the recording medium 18 is removable, information for specifying the recording medium, information for specifying the title, information for the chapter mark, information for the editing candidate point, or information for the editing point By associating and recording this, even if the recording medium 18 is removed and replaced with another recording medium, it is possible to prevent occurrence of improper matching.

  Further, the recording medium 18 of the recording / reproducing apparatus 100 is not limited to a hard disk, and various recording media such as an optical disk, a magneto-optical disk, and a semiconductor memory can be used. Further, the recording medium 18 is not limited to one provided inside the recording / reproducing apparatus 100, and image information or the like recorded on an externally connected hard disk device or the like can be used as information for reproduction. .

  Further, in the above-described embodiment, a case where the present invention is applied to a recording / reproducing apparatus using a hard disk as a recording medium has been described as an example, but the present invention is not limited to this. The present invention can be applied to a video camera device. That is, the present invention can be applied to various recording / reproducing apparatuses having a function of reproducing the recorded image information while capturing the image information and recording the same on a recording medium.

  Further, the present invention can be applied to a reproducing apparatus having a function of reproducing image information recorded on a recording medium. In this case, even if the information about the chapter mark and the editing point information cannot be written on the recording medium, the information about the chapter mark and the editing point information can be written into the memory of the own device, and can be read as needed. It should just be like that.

  Further, the number of sub-image display areas and the number of still images (thumbnails) to be displayed for selecting an editing point are not limited to the examples in the above-described embodiment, and may be many depending on the number of display screens. Can be reduced or reduced.

1 is a diagram for explaining an image processing system formed by using a recording / reproducing device to which an image detecting device according to the present invention is applied. 1 is a block diagram for explaining a recording / reproducing device to which an image detection device according to the present invention is applied. FIG. 14 is a diagram for describing an example of a display image displayed on the display screen 201 immediately after an operation is performed so as to add a chapter mark. FIG. 9 is a diagram for explaining a display example of an image when a reduced still image (thumbnail) is displayed. FIG. 11 is a diagram for explaining selection of a reduced still image, scroll display, and menu display for the reduced still image. It is a figure for explaining use of a timeline and a triangular mark. FIG. 9 is a diagram for describing an example of a display item displayed on a display screen. 5 is a flowchart for describing an operation at the time of reproduction. It is a flowchart following FIG. It is a flowchart following FIG. FIG. 11 is a diagram for explaining another example of a display image. FIG. 11 is a diagram for explaining another example of a display image. FIG. 9 is a diagram for explaining a second embodiment of the recording / reproducing device to which the image detecting device according to the present invention is applied. FIG. 14 is a diagram for explaining an example of a display image formed in the recording / reproducing device shown in FIG. 13. FIG. 14 is a diagram for explaining another example of a display image formed in the recording / reproducing device shown in FIG. 13. FIG. 14 is a diagram for explaining another example of a display image formed in the recording / reproducing device shown in FIG. 13. FIG. 9 is a diagram for explaining the operation of the user and the recording / reproducing device 600 when selecting an image to be used as an editing candidate point from images of a target scene. FIG. 9 is a diagram for explaining the operation of the user and the recording / reproducing device 600 when selecting an image to be used as an editing candidate point from images of a target scene. 14 is a flowchart for explaining the operation of the recording and reproducing apparatus according to the second embodiment shown in FIG. It is a flowchart following FIG. FIG. 19 is a diagram for describing processing when a subsequent reproduction point catches up with a previously set editing candidate point in the recording / reproduction device of the second example of the second embodiment. FIG. 14 is a diagram for describing a case where a cursor CS is not positioned in a sub-image display area SG2. FIG. 11 is a diagram for explaining the operation of the recording / reproducing apparatus after setting an editing point with reference to a reproduction point that has caught up to an editing candidate point. FIG. 9 is a diagram for explaining an example in which the playback speed is changed according to the position of the playback point. FIG. 9 is a diagram for explaining an example in which the playback speed is changed according to the position of the playback point. FIG. 9 is a diagram for explaining an example in which the playback speed is changed according to the position of the playback point. It is a figure for explaining the case where the following reproduction point overtakes the preceding reproduction point. It is a figure for explaining the case where the following reproduction point overtakes the preceding reproduction point. It is a figure for explaining the case where the following reproduction point overtakes the preceding reproduction point. FIG. 9 is a diagram for describing automatic setting of a reproduction point when a reproduction speed is set by a user. FIG. 9 is a diagram for describing automatic setting of a reproduction point when a reproduction speed is set by a user. FIG. 9 is a diagram for describing automatic setting of a reproduction point when a reproduction speed is set by a user. FIG. 9 is a diagram for explaining an image in which editing candidate point information is displayed using past editing point information. FIG. 9 is a diagram for explaining an image in which editing candidate point information is displayed using past editing point information.

Explanation of reference numerals

  REFERENCE SIGNS LIST 100 recording / reproducing device, 1 digital input terminal, 2 digital input / output terminal, 3 digital I / F, 4 audio input terminal, 5 A / D converter, 6 pre-audio processing circuit, 7 MPEG Audio encoder, 8: image input terminal, 9: YC separation circuit, 10: image input terminal, 11: selector, 12: NTSC decoder, 13: pre-video signal processing circuit, 14: MPEG video encoder, 15: synchronization control circuit, 16 multiplexing / demultiplexing circuit, 17 buffer control circuit, 18 recording medium, 19 MPEG audio decoder, 20 post audio signal processing circuit, 21 D / A converter, 22 audio output terminal, 23 MPEG video Decoder, 24 ... Post video processing circuit, 25 ... Still image generation circuit, 26 ... Synthesis circuit, 27 ... NTSC encoder, 28 ... Image output terminal, 2 ... image output terminal, 40 ... CPU, 41 ... ROM, 42 ... RAM, 43 ... EEPROM, 44 ... remote control signal receiving unit, 50 ... display image forming circuit, 150 ... remote control, 600 ... recording and reproducing apparatus

Claims (18)

First extraction means for extracting a predetermined number of frame images from a plurality of frame images constituting a moving image;
First display control means for controlling display of a predetermined number of moving images with the predetermined number of frame images extracted by the first extraction means as an initial image;
First instruction means for selecting and instructing a desired moving image from a predetermined number of moving images whose display is controlled by the first display control means,
Second extracting means for extracting an arbitrary frame image from the moving image specified by the first specifying means;
Second display control means for controlling display of the frame image extracted by the second extraction means and a predetermined number of frame images temporally before and after the frame image;
And a second instructing means for selecting and instructing a desired frame image from the frame images the display of which has been controlled by the second display controlling means.   2. The image detection apparatus according to claim 1, wherein the first extraction unit extracts a number of frame images proportional to a display speed of the moving image whose display is controlled by the first display control unit.   2. The image detection apparatus according to claim 1, wherein the first display control unit controls at least one of the plurality of moving images to be displayed at a different display speed. 3.   The second display control means is configured to display a position of the frame image extracted by the second extraction means and at least one of the plurality of moving images whose display is controlled by the first display control means. 2. The display according to claim 1, wherein when the positions of the constituent frame images match, display of the frame image and a predetermined number of frame images temporally before and after the frame image are controlled. Image detection device.   2. The image detecting apparatus according to claim 1, wherein the first extracting unit is capable of extracting a predetermined number of the frame images based on a predetermined pattern.   6. The image detecting apparatus according to claim 5, wherein the pattern is in accordance with positional information of a frame image specified in the past through the first specifying unit. A first extraction step of extracting a predetermined number of frame images from a plurality of frame images constituting a moving image;
A first display control step of controlling display of a predetermined number of moving images with the predetermined number of frame images extracted in the first extraction step as an initial image;
A first instruction step of selecting and instructing a desired moving image from a predetermined number of moving images whose display is controlled in the first display control step;
A second extraction step of extracting an arbitrary frame image from the moving image instructed in the first instruction step;
A second display control step of controlling display of the frame image extracted in the second extraction step and a predetermined number of frame images temporally before and after the frame image;
A second instruction step of selecting and instructing a desired frame image from the frame images whose display has been controlled in the second display control step;
An image detection method comprising:   8. The image detection method according to claim 7, wherein in the first extraction step, a number of frame images proportional to a display speed of the moving image whose display is controlled in the first display control step is extracted. Method.   8. The image detection method according to claim 7, wherein in the first display control step, at least one of the plurality of moving images is controlled to be displayed at a different display speed.   In the second display control step, the position of the frame image extracted in the second extraction step and at least one of the plurality of moving images whose display is controlled in the first display control step are configured. The display of the frame image and a predetermined number of frame images that are temporally before and after the frame image are controlled when the positions of the frame images to be matched coincide with each other. Image detection method.   The image detection method according to claim 7, wherein in the first extraction step, a predetermined number of the frame images can be extracted based on a predetermined pattern.   12. The image detection method according to claim 11, wherein the pattern is based on position information of a frame image specified in the past in the first specifying step. A computer that is mounted on an image detection device that detects a target frame image from a plurality of frame images constituting a moving image and controls each unit of the image detection device,
A first extraction step of extracting a predetermined number of frame images from the plurality of frame images constituting the moving image;
A first display control step of controlling display of a predetermined number of moving images with the predetermined number of frame images extracted in the first extraction step as an initial image;
A first instruction step of receiving a selection and an instruction of a desired moving image from a predetermined number of moving images whose display is controlled by the first display control step;
A second extraction step of extracting an arbitrary frame image from the moving image instructed by the first instruction step;
A second display control step of controlling display of the frame image extracted in the second extraction step and a predetermined number of frame images temporally before and after the frame image;
A second instruction step of receiving a selection and an instruction of a desired frame image from the frame images the display of which has been controlled by the second display control step.   14. The image detection method according to claim 13, wherein in the first extraction step, a number of frame images proportional to a display speed of the moving image whose display is controlled by the first display control step is extracted. program.   14. The image detection program according to claim 13, wherein in the first display control step, control is performed such that at least one of the plurality of moving images is displayed at a different display speed. .   In the second display control step, a position of the frame image extracted in the second extraction step and at least one of the plurality of moving images whose display is controlled in the first display control step are configured. 14. The display according to claim 13, wherein when the positions of the frame images to be matched match, display of the frame image and a predetermined number of frame images temporally before and after the frame image are controlled. Image detection program.   14. The image detection program according to claim 13, wherein in the first extraction step, a predetermined number of the frame images can be extracted based on a predetermined pattern.   18. The storage medium according to claim 17, wherein the pattern is based on positional information of a frame image specified in the past in the first specifying step.

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